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2017-04-02Linux 4.11-rc5v4.11-rc5Linus Torvalds
2017-04-02Merge tag 'dmaengine-fix-4.11-rc5' of ↵Linus Torvalds
git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine fixes from Vinod Koul: "A couple of minor fixes for 4.11: - array bound fix for __get_unmap_pool() - cyclic period splitting for bcm2835" * tag 'dmaengine-fix-4.11-rc5' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: Fix array index out of bounds warning in __get_unmap_pool() dmaengine: bcm2835: Fix cyclic DMA period splitting
2017-04-02Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "This update provides: - prevent KASLR from randomizing EFI regions - restrict the usage of -maccumulate-outgoing-args and document when and why it is required. - make the Global Physical Address calculation for UV4 systems work correctly. - address a copy->paste->forgot-edit problem in the MCE exception table entries. - assign a name to AMD MCA bank 3, so the sysfs file registration works. - add a missing include in the boot code" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot: Include missing header file x86/mce/AMD: Give a name to MCA bank 3 when accessed with legacy MSRs x86/build: Mostly disable '-maccumulate-outgoing-args' x86/mm/KASLR: Exclude EFI region from KASLR VA space randomization x86/mce: Fix copy/paste error in exception table entries x86/platform/uv: Fix calculation of Global Physical Address
2017-04-02Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Thomas Gleixner: "This update provides: - make the scheduler clock switch to unstable mode smooth so the timestamps stay at microseconds granularity instead of switching to tick granularity. - unbreak perf test tsc by taking the new offset into account which was added in order to proveide better sched clock continuity - switching sched clock to unstable mode runs all clock related computations which affect the sched clock output itself from a work queue. In case of preemption sched clock uses half updated data and provides wrong timestamps. Keep the math in the protected context and delegate only the static key switch to workqueue context. - remove a duplicate header include" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/headers: Remove duplicate #include <linux/sched/debug.h> line sched/clock: Fix broken stable to unstable transfer sched/clock, x86/perf: Fix "perf test tsc" sched/clock: Fix clear_sched_clock_stable() preempt wobbly
2017-04-02Merge branch 'efi-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI fix from Thomas Gleixner: "Downgrade the missing ESRT header printk to warning level and remove a useless error printk which just generates noise for no value" * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi/esrt: Cleanup bad memory map log messages
2017-04-02Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: "Two small fixes for the new CLKEVT_OF infrastructure" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: vmlinux.lds: Add __clkevt_of_table to kernel clockevents: Fix syntax error in clkevt-of macro
2017-04-02Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Gleixner: "Two small fixlets: - select a required Kconfig to make the MVEBU driver compile - add the missing MIPS local GIC interrupts which prevent drivers to probe successfully" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mips-gic: Fix Local compare interrupt irqchip/mvebu-odmi: Select GENERIC_MSI_IRQ_DOMAIN
2017-04-02Merge branch 'core-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core fix from Thomas Gleixner: "Prevent leaking kernel memory via /proc/$pid/syscall when the queried task is not in a syscall" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: lib/syscall: Clear return values when no stack
2017-04-01Merge branch 'parisc-4.11-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fixes from Helge Deller: "Al Viro reported that - in case of read faults - our copy_from_user() implementation may claim to have copied more bytes than it actually did. In order to fix this bug and because of the way how gcc optimizes register usage for inline assembly in C code, we had to replace our pa_memcpy() function with a pure assembler implementation. While fixing the memcpy bug we noticed some other issues with our get_user() and put_user() functions, e.g. nested faults may return wrong data. This is now fixed by a common fixup handler for get_user/put_user in the exception handler which additionally makes generated code smaller and faster. The third patch is a trivial one-line fix for a patch which went in during 4.11-rc and which avoids stalled CPU warnings after power shutdown (for parisc machines which can't plug power off themselves). Due to the rewrite of pa_memcpy() into assembly this patch got bigger than what I wanted to have sent at this stage. Those patches have been running in production during the last few days on our debian build servers without any further issues" * 'parisc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Avoid stalled CPU warnings after system shutdown parisc: Clean up fixup routines for get_user()/put_user() parisc: Fix access fault handling in pa_memcpy()
2017-04-01Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Thirteen small fixes: The hopefully final effort to get the lpfc nvme kconfig problems sorted, there's one important sg fix (user can induce read after end of buffer) and one minor enhancement (adding an extra PCI ID to qedi). The rest are a set of minor fixes, which mostly occur as user visible in error legs or on specific devices" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ufs: remove the duplicated checking for supporting clkscaling scsi: lpfc: fix building without debugfs support scsi: lpfc: Fix PT2PT PRLI reject scsi: hpsa: fix volume offline state scsi: libsas: fix ata xfer length scsi: scsi_dh_alua: Warn if the first argument of alua_rtpg_queue() is NULL scsi: scsi_dh_alua: Ensure that alua_activate() calls the completion function scsi: scsi_dh_alua: Check scsi_device_get() return value scsi: sg: check length passed to SG_NEXT_CMD_LEN scsi: ufshcd-platform: remove the useless cast in ERR_PTR/IS_ERR scsi: qedi: Add PCI device-ID for QL41xxx adapters. scsi: aacraid: Fix potential null access scsi: qla2xxx: Fix crash in qla2xxx_eh_abort on bad ptr
2017-04-01Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "11 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: kasan: do not sanitize kexec purgatory drivers/rapidio/devices/tsi721.c: make module parameter variable name unique mm/hugetlb.c: don't call region_abort if region_chg fails kasan: report only the first error by default hugetlbfs: initialize shared policy as part of inode allocation mm: fix section name for .data..ro_after_init mm, hugetlb: use pte_present() instead of pmd_present() in follow_huge_pmd() mm: workingset: fix premature shadow node shrinking with cgroups mm: rmap: fix huge file mmap accounting in the memcg stats mm: move mm_percpu_wq initialization earlier mm: migrate: fix remove_migration_pte() for ksm pages
2017-04-01Merge tag 'usb-4.11-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some small USB fixes for 4.11-rc5. The usual xhci fixes are here, as well as a fix for yet-another-bug- found-by-KASAN, those developers are doing great stuff here. And there's a phy build warning fix that showed up in 4.11-rc1. All of these have been in linux-next with no reported issues" * tag 'usb-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: phy: isp1301: Fix build warning when CONFIG_OF is disabled xhci: Manually give back cancelled URB if we can't queue it for cancel xhci: Set URB actual length for stopped control transfers xhci: plat: Register shutdown for xhci_plat USB: fix linked-list corruption in rh_call_control()
2017-04-01Merge tag 'tty-4.11-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial fixes from Greg KH: "Here are some small fixes for some serial drivers and Kconfig help text for 4.11-rc5. Nothing major here at all, a few things resolving reported bugs in some random serial drivers. I don't think these made the last linux-next due to me getting to them yesterday, but I am not sure, they might have snuck in. The patches only affect drivers that the maintainers of sent me these patches for, so we should be safe here :)" * tag 'tty-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: pl011: fix earlycon work-around for QDF2400 erratum 44 serial: 8250_EXAR: fix duplicate Kconfig text and add missing help text tty/serial: atmel: fix TX path in atmel_console_write() tty/serial: atmel: fix race condition (TX+DMA) serial: mxs-auart: Fix baudrate calculation
2017-04-01Merge tag 'acpi-4.11-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fixes from Rafael Wysocki: "These fix two issues related to IOAPIC hotplug, an overzealous build optimization that prevents the function graph tracer from working with the ACPI subsystem correctly and an RCU synchronization issue in the ACPI APEI code. Specifics: - drop the unconditional setting of the '-Os' gcc flag from the ACPI Makefile to make the function graph tracer work correctly with the ACPI subsystem (Josh Poimboeuf). - add missing synchronize_rcu() to ghes_remove() which removes an element from an RCU-protected list, but fails to synchronize it properly afterward (James Morse). - fix two problems related to IOAPIC hotplug, a local variable initialization in setup_res() and the creation of platform device objects for IO(x)APICs which are (a) unused and (b) leaked on hot-removal (Joerg Roedel)" * tag 'acpi-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: Fix incompatibility with mcount-based function graph tracing ACPI / APEI: Add missing synchronize_rcu() on NOTIFY_SCI removal ACPI: Do not create a platform_device for IOAPIC/IOxAPIC ACPI: ioapic: Clear on-stack resource before using it
2017-04-01Merge tag 'pm-4.11-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: "These fix a cpufreq core issue with the initialization of the cpufreq sysfs interface and a cpuidle powernv driver initialization issue. Specifics: - symbolic links from CPU directories to the corresponding cpufreq policy directories in sysfs are not created during initialization in some cases which confuses user space, so prevent that from happening (Rafael Wysocki). - the powernv cpuidle driver fails to pass a correct cpumaks to the cpuidle core in some cases which causes subsequent failures to occur, so fix it (Vaidyanathan Srinivasan)" * tag 'pm-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpuidle: powernv: Pass correct drv->cpumask for registration cpufreq: Fix creation of symbolic links to policy directories
2017-04-01Merge branch 'i2c/for-current' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Two bugfixes from I2C, specifically the I2C mux section. Thanks to peda for collecting them" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: mux: pca954x: Add missing pca9546 definition to chip_desc Revert "i2c: mux: pca954x: Add ACPI support for pca954x"
2017-04-01Merge tag 'arc-4.11-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC fixes from Vineet Gupta: "Accumulated fixes for ARC which I've been been sitting on for a while: - reading clk from driver vs device tree [Vlad] - fix support for UIO in VDK platform [Alexey] - SLC busy bit reading workaround - build warning with kprobes header reorg" * tag 'arc-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: fix build warnings with !CONFIG_KPROBES ARCv2: SLC: Make sure busy bit is set properly on SLC flushing ARC: vdk: Fix support of UIO ARCv2: make unimplemented vectors as no-ops rather than halt core ARC: get rate from clk driver instead of reading device tree ARC: [dts] add cpu nodes to ARCHS SMP device tree ARC: [dts] add input clocks for cpu nodes
2017-04-01Merge tag 'nfsd-4.11-1' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
Pull nfsd fixes from Bruce Fields: "The restriction of NFSv4 to TCP went overboard and also broke the backchannel; fix. Also some minor refinements to the nfsd version-setting interface that we'd like to get fixed before release" * tag 'nfsd-4.11-1' of git://linux-nfs.org/~bfields/linux: svcrdma: set XPT_CONG_CTRL flag for bc xprt NFSD: fix nfsd_reset_versions for NFSv4. NFSD: fix nfsd_minorversion(.., NFSD_AVAIL) NFSD: further refinement of content of /proc/fs/nfsd/versions nfsd: map the ENOKEY to nfserr_perm for avoiding warning SUNRPC/backchanel: set XPT_CONG_CTRL flag for bc xprt
2017-04-01tty: pl011: fix earlycon work-around for QDF2400 erratum 44Timur Tabi
The work-around for the Qualcomm Datacenter Technologies QDF2400 erratum 44 sets the "qdf2400_e44_present" global variable if the work-around is needed. However, this check does not happen until after earlycon is initialized, which means the work-around is not used, and the console hangs as soon as it displays one character. Fixes: d8a4995bcea1 ("tty: pl011: Work around QDF2400 E44 stuck BUSY bit") Signed-off-by: Timur Tabi <timur@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-31Merge branch 'for-linus-4.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs fixes from Chris Mason: "We have three small fixes queued up in my for-linus-4.11 branch" * 'for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix an integer overflow check btrfs: Change qgroup_meta_rsv to 64bit Btrfs: bring back repair during read
2017-03-31kasan: do not sanitize kexec purgatoryMike Galbraith
Fixes this: kexec: Undefined symbol: __asan_load8_noabort kexec-bzImage64: Loading purgatory failed Link: http://lkml.kernel.org/r/1489672155.4458.7.camel@gmx.de Signed-off-by: Mike Galbraith <efault@gmx.de> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-31drivers/rapidio/devices/tsi721.c: make module parameter variable name uniqueRandy Dunlap
kbuild test robot reported a non-static variable name collision between a staging driver and a RapidIO driver, with a generic variable name of 'dbg_level'. Both drivers should be changed so that they don't use this generic public variable name. This patch fixes the RapidIO driver but does not change the user interface (name) for the module parameter. drivers/staging/built-in.o:(.bss+0x109d0): multiple definition of `dbg_level' drivers/rapidio/built-in.o:(.bss+0x16c): first defined here Link: http://lkml.kernel.org/r/ab527fc5-aa3c-4b07-5d48-eef5de703192@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kbuild test robot <fengguang.wu@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-31mm/hugetlb.c: don't call region_abort if region_chg failsMike Kravetz
Changes to hugetlbfs reservation maps is a two step process. The first step is a call to region_chg to determine what needs to be changed, and prepare that change. This should be followed by a call to call to region_add to commit the change, or region_abort to abort the change. The error path in hugetlb_reserve_pages called region_abort after a failed call to region_chg. As a result, the adds_in_progress counter in the reservation map is off by 1. This is caught by a VM_BUG_ON in resv_map_release when the reservation map is freed. syzkaller fuzzer (when using an injected kmalloc failure) found this bug, that resulted in the following: kernel BUG at mm/hugetlb.c:742! Call Trace: hugetlbfs_evict_inode+0x7b/0xa0 fs/hugetlbfs/inode.c:493 evict+0x481/0x920 fs/inode.c:553 iput_final fs/inode.c:1515 [inline] iput+0x62b/0xa20 fs/inode.c:1542 hugetlb_file_setup+0x593/0x9f0 fs/hugetlbfs/inode.c:1306 newseg+0x422/0xd30 ipc/shm.c:575 ipcget_new ipc/util.c:285 [inline] ipcget+0x21e/0x580 ipc/util.c:639 SYSC_shmget ipc/shm.c:673 [inline] SyS_shmget+0x158/0x230 ipc/shm.c:657 entry_SYSCALL_64_fastpath+0x1f/0xc2 RIP: resv_map_release+0x265/0x330 mm/hugetlb.c:742 Link: http://lkml.kernel.org/r/1490821682-23228-1-git-send-email-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Reported-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-31kasan: report only the first error by defaultMark Rutland
Disable kasan after the first report. There are several reasons for this: - Single bug quite often has multiple invalid memory accesses causing storm in the dmesg. - Write OOB access might corrupt metadata so the next report will print bogus alloc/free stacktraces. - Reports after the first easily could be not bugs by itself but just side effects of the first one. Given that multiple reports usually only do harm, it makes sense to disable kasan after the first one. If user wants to see all the reports, the boot-time parameter kasan_multi_shot must be used. [aryabinin@virtuozzo.com: wrote changelog and doc, added missing include] Link: http://lkml.kernel.org/r/20170323154416.30257-1-aryabinin@virtuozzo.com Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-31hugetlbfs: initialize shared policy as part of inode allocationMike Kravetz
Any time after inode allocation, destroy_inode can be called. The hugetlbfs inode contains a shared_policy structure, and mpol_free_shared_policy is unconditionally called as part of hugetlbfs_destroy_inode. Initialize the policy as part of inode allocation so that any quick (error path) calls to destroy_inode will be handed an initialized policy. syzkaller fuzzer found this bug, that resulted in the following: BUG: KASAN: user-memory-access in atomic_inc include/asm-generic/atomic-instrumented.h:87 [inline] at addr 000000131730bd7a BUG: KASAN: user-memory-access in __lock_acquire+0x21a/0x3a80 kernel/locking/lockdep.c:3239 at addr 000000131730bd7a Write of size 4 by task syz-executor6/14086 CPU: 3 PID: 14086 Comm: syz-executor6 Not tainted 4.11.0-rc3+ #364 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Call Trace: atomic_inc include/asm-generic/atomic-instrumented.h:87 [inline] __lock_acquire+0x21a/0x3a80 kernel/locking/lockdep.c:3239 lock_acquire+0x1ee/0x590 kernel/locking/lockdep.c:3762 __raw_write_lock include/linux/rwlock_api_smp.h:210 [inline] _raw_write_lock+0x33/0x50 kernel/locking/spinlock.c:295 mpol_free_shared_policy+0x43/0xb0 mm/mempolicy.c:2536 hugetlbfs_destroy_inode+0xca/0x120 fs/hugetlbfs/inode.c:952 alloc_inode+0x10d/0x180 fs/inode.c:216 new_inode_pseudo+0x69/0x190 fs/inode.c:889 new_inode+0x1c/0x40 fs/inode.c:918 hugetlbfs_get_inode+0x40/0x420 fs/hugetlbfs/inode.c:734 hugetlb_file_setup+0x329/0x9f0 fs/hugetlbfs/inode.c:1282 newseg+0x422/0xd30 ipc/shm.c:575 ipcget_new ipc/util.c:285 [inline] ipcget+0x21e/0x580 ipc/util.c:639 SYSC_shmget ipc/shm.c:673 [inline] SyS_shmget+0x158/0x230 ipc/shm.c:657 entry_SYSCALL_64_fastpath+0x1f/0xc2 Analysis provided by Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Link: http://lkml.kernel.org/r/1490477850-7944-1-git-send-email-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Reported-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Michal Hocko <mhocko@suse.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-31mm: fix section name for .data..ro_after_initKees Cook
A section name for .data..ro_after_init was added by both: commit d07a980c1b8d ("s390: add proper __ro_after_init support") and commit d7c19b066dcf ("mm: kmemleak: scan .data.ro_after_init") The latter adds incorrect wrapping around the existing s390 section, and came later. I'd prefer the s390 naming, so this moves the s390-specific name up to the asm-generic/sections.h and renames the section as used by kmemleak (and in the future, kernel/extable.c). Link: http://lkml.kernel.org/r/20170327192213.GA129375@beast Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390 parts] Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Cc: Eddie Kovsky <ewk@edkovsky.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-31mm, hugetlb: use pte_present() instead of pmd_present() in follow_huge_pmd()Naoya Horiguchi
I found the race condition which triggers the following bug when move_pages() and soft offline are called on a single hugetlb page concurrently. Soft offlining page 0x119400 at 0x700000000000 BUG: unable to handle kernel paging request at ffffea0011943820 IP: follow_huge_pmd+0x143/0x190 PGD 7ffd2067 PUD 7ffd1067 PMD 0 [61163.582052] Oops: 0000 [#1] SMP Modules linked in: binfmt_misc ppdev virtio_balloon parport_pc pcspkr i2c_piix4 parport i2c_core acpi_cpufreq ip_tables xfs libcrc32c ata_generic pata_acpi virtio_blk 8139too crc32c_intel ata_piix serio_raw libata virtio_pci 8139cp virtio_ring virtio mii floppy dm_mirror dm_region_hash dm_log dm_mod [last unloaded: cap_check] CPU: 0 PID: 22573 Comm: iterate_numa_mo Tainted: P OE 4.11.0-rc2-mm1+ #2 Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 RIP: 0010:follow_huge_pmd+0x143/0x190 RSP: 0018:ffffc90004bdbcd0 EFLAGS: 00010202 RAX: 0000000465003e80 RBX: ffffea0004e34d30 RCX: 00003ffffffff000 RDX: 0000000011943800 RSI: 0000000000080001 RDI: 0000000465003e80 RBP: ffffc90004bdbd18 R08: 0000000000000000 R09: ffff880138d34000 R10: ffffea0004650000 R11: 0000000000c363b0 R12: ffffea0011943800 R13: ffff8801b8d34000 R14: ffffea0000000000 R15: 000077ff80000000 FS: 00007fc977710740(0000) GS:ffff88007dc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffea0011943820 CR3: 000000007a746000 CR4: 00000000001406f0 Call Trace: follow_page_mask+0x270/0x550 SYSC_move_pages+0x4ea/0x8f0 SyS_move_pages+0xe/0x10 do_syscall_64+0x67/0x180 entry_SYSCALL64_slow_path+0x25/0x25 RIP: 0033:0x7fc976e03949 RSP: 002b:00007ffe72221d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000117 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc976e03949 RDX: 0000000000c22390 RSI: 0000000000001400 RDI: 0000000000005827 RBP: 00007ffe72221e00 R08: 0000000000c2c3a0 R09: 0000000000000004 R10: 0000000000c363b0 R11: 0000000000000246 R12: 0000000000400650 R13: 00007ffe72221ee0 R14: 0000000000000000 R15: 0000000000000000 Code: 81 e4 ff ff 1f 00 48 21 c2 49 c1 ec 0c 48 c1 ea 0c 4c 01 e2 49 bc 00 00 00 00 00 ea ff ff 48 c1 e2 06 49 01 d4 f6 45 bc 04 74 90 <49> 8b 7c 24 20 40 f6 c7 01 75 2b 4c 89 e7 8b 47 1c 85 c0 7e 2a RIP: follow_huge_pmd+0x143/0x190 RSP: ffffc90004bdbcd0 CR2: ffffea0011943820 ---[ end trace e4f81353a2d23232 ]--- Kernel panic - not syncing: Fatal exception Kernel Offset: disabled This bug is triggered when pmd_present() returns true for non-present hugetlb, so fixing the present check in follow_huge_pmd() prevents it. Using pmd_present() to determine present/non-present for hugetlb is not correct, because pmd_present() checks multiple bits (not only _PAGE_PRESENT) for historical reason and it can misjudge hugetlb state. Fixes: e66f17ff7177 ("mm/hugetlb: take page table lock in follow_huge_pmd()") Link: http://lkml.kernel.org/r/1490149898-20231-1-git-send-email-n-horiguchi@ah.jp.nec.com Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Hugh Dickins <hughd@google.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com> Cc: <stable@vger.kernel.org> [4.0+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-31mm: workingset: fix premature shadow node shrinking with cgroupsJohannes Weiner
Commit 0a6b76dd23fa ("mm: workingset: make shadow node shrinker memcg aware") enabled cgroup-awareness in the shadow node shrinker, but forgot to also enable cgroup-awareness in the list_lru the shadow nodes sit on. Consequently, all shadow nodes are sitting on a global (per-NUMA node) list, while the shrinker applies the limits according to the amount of cache in the cgroup its shrinking. The result is excessive pressure on the shadow nodes from cgroups that have very little cache. Enable memcg-mode on the shadow node LRUs, such that per-cgroup limits are applied to per-cgroup lists. Fixes: 0a6b76dd23fa ("mm: workingset: make shadow node shrinker memcg aware") Link: http://lkml.kernel.org/r/20170322005320.8165-1-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Vladimir Davydov <vdavydov@tarantool.org> Cc: Michal Hocko <mhocko@suse.com> Cc: <stable@vger.kernel.org> [4.6+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-31mm: rmap: fix huge file mmap accounting in the memcg statsJohannes Weiner
Huge pages are accounted as single units in the memcg's "file_mapped" counter. Account the correct number of base pages, like we do in the corresponding node counter. Link: http://lkml.kernel.org/r/20170322005111.3156-1-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: <stable@vger.kernel.org> [4.8+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-31mm: move mm_percpu_wq initialization earlierMichal Hocko
Yang Li has reported that drain_all_pages triggers a WARN_ON which means that this function is called earlier than the mm_percpu_wq is initialized on arm64 with CMA configured: WARNING: CPU: 2 PID: 1 at mm/page_alloc.c:2423 drain_all_pages+0x244/0x25c Modules linked in: CPU: 2 PID: 1 Comm: swapper/0 Not tainted 4.11.0-rc1-next-20170310-00027-g64dfbc5 #127 Hardware name: Freescale Layerscape 2088A RDB Board (DT) task: ffffffc07c4a6d00 task.stack: ffffffc07c4a8000 PC is at drain_all_pages+0x244/0x25c LR is at start_isolate_page_range+0x14c/0x1f0 [...] drain_all_pages+0x244/0x25c start_isolate_page_range+0x14c/0x1f0 alloc_contig_range+0xec/0x354 cma_alloc+0x100/0x1fc dma_alloc_from_contiguous+0x3c/0x44 atomic_pool_init+0x7c/0x208 arm64_dma_init+0x44/0x4c do_one_initcall+0x38/0x128 kernel_init_freeable+0x1a0/0x240 kernel_init+0x10/0xfc ret_from_fork+0x10/0x20 Fix this by moving the whole setup_vmstat which is an initcall right now to init_mm_internals which will be called right after the WQ subsystem is initialized. Link: http://lkml.kernel.org/r/20170315164021.28532-1-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Reported-by: Yang Li <pku.leo@gmail.com> Tested-by: Yang Li <pku.leo@gmail.com> Tested-by: Xiaolong Ye <xiaolong.ye@intel.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-31mm: migrate: fix remove_migration_pte() for ksm pagesNaoya Horiguchi
I found that calling page migration for ksm pages causes the following bug: page:ffffea0004d51180 count:2 mapcount:2 mapping:ffff88013c785141 index:0x913 flags: 0x57ffffc0040068(uptodate|lru|active|swapbacked) raw: 0057ffffc0040068 ffff88013c785141 0000000000000913 0000000200000001 raw: ffffea0004d5f9e0 ffffea0004d53f60 0000000000000000 ffff88007d81b800 page dumped because: VM_BUG_ON_PAGE(!PageLocked(page)) page->mem_cgroup:ffff88007d81b800 ------------[ cut here ]------------ kernel BUG at /src/linux-dev/mm/rmap.c:1086! invalid opcode: 0000 [#1] SMP Modules linked in: ppdev parport_pc virtio_balloon i2c_piix4 pcspkr parport i2c_core acpi_cpufreq ip_tables xfs libcrc32c ata_generic pata_acpi ata_piix 8139too libata virtio_blk 8139cp crc32c_intel mii virtio_pci virtio_ring serio_raw virtio floppy dm_mirror dm_region_hash dm_log dm_mod CPU: 0 PID: 3162 Comm: bash Not tainted 4.11.0-rc2-mm1+ #1 Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 RIP: 0010:do_page_add_anon_rmap+0x1ba/0x260 RSP: 0018:ffffc90002473b30 EFLAGS: 00010282 RAX: 0000000000000021 RBX: ffffea0004d51180 RCX: 0000000000000006 RDX: 0000000000000000 RSI: 0000000000000082 RDI: ffff88007dc0dfe0 RBP: ffffc90002473b58 R08: 00000000fffffffe R09: 00000000000001c1 R10: 0000000000000005 R11: 00000000000001c0 R12: ffff880139ab3d80 R13: 0000000000000000 R14: 0000700000000200 R15: 0000160000000000 FS: 00007f5195f50740(0000) GS:ffff88007dc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd450287000 CR3: 000000007a08e000 CR4: 00000000001406f0 Call Trace: page_add_anon_rmap+0x18/0x20 remove_migration_pte+0x220/0x2c0 rmap_walk_ksm+0x143/0x220 rmap_walk+0x55/0x60 remove_migration_ptes+0x53/0x80 migrate_pages+0x8ed/0xb60 soft_offline_page+0x309/0x8d0 store_soft_offline_page+0xaf/0xf0 dev_attr_store+0x18/0x30 sysfs_kf_write+0x3a/0x50 kernfs_fop_write+0xff/0x180 __vfs_write+0x37/0x160 vfs_write+0xb2/0x1b0 SyS_write+0x55/0xc0 do_syscall_64+0x67/0x180 entry_SYSCALL64_slow_path+0x25/0x25 RIP: 0033:0x7f51956339e0 RSP: 002b:00007ffcfa0dffc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f51956339e0 RDX: 000000000000000c RSI: 00007f5195f53000 RDI: 0000000000000001 RBP: 00007f5195f53000 R08: 000000000000000a R09: 00007f5195f50740 R10: 000000000000000b R11: 0000000000000246 R12: 00007f5195907400 R13: 000000000000000c R14: 0000000000000001 R15: 0000000000000000 Code: fe ff ff 48 81 c2 00 02 00 00 48 89 55 d8 e8 2e c3 fd ff 48 8b 55 d8 e9 42 ff ff ff 48 c7 c6 e0 52 a1 81 48 89 df e8 46 ad fe ff <0f> 0b 48 83 e8 01 e9 7f fe ff ff 48 83 e8 01 e9 96 fe ff ff 48 RIP: do_page_add_anon_rmap+0x1ba/0x260 RSP: ffffc90002473b30 ---[ end trace a679d00f4af2df48 ]--- Kernel panic - not syncing: Fatal exception Kernel Offset: disabled ---[ end Kernel panic - not syncing: Fatal exception The problem is in the following lines: new = page - pvmw.page->index + linear_page_index(vma, pvmw.address); The 'new' is calculated with 'page' which is given by the caller as a destination page and some offset adjustment for thp. But this doesn't properly work for ksm pages because pvmw.page->index doesn't change for each address but linear_page_index() changes, which means that 'new' points to different pages for each addresses backed by the ksm page. As a result, we try to set totally unrelated pages as destination pages, and that causes kernel crash. This patch fixes the miscalculation and makes ksm page migration work fine. Fixes: 3fe87967c536 ("mm: convert remove_migration_pte() to use page_vma_mapped_walk()") Link: http://lkml.kernel.org/r/1489717683-29905-1-git-send-email-n-horiguchi@ah.jp.nec.com Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-31Merge branches 'pm-cpufreq-fixes' and 'pm-cpuidle-fixes'Rafael J. Wysocki
* pm-cpufreq-fixes: cpufreq: Fix creation of symbolic links to policy directories * pm-cpuidle-fixes: cpuidle: powernv: Pass correct drv->cpumask for registration
2017-03-31Merge branches 'acpi-hotplug-fixes', 'acpi-build-fixes' and 'acpi-apei-fixes'Rafael J. Wysocki
* acpi-hotplug-fixes: ACPI: Do not create a platform_device for IOAPIC/IOxAPIC ACPI: ioapic: Clear on-stack resource before using it * acpi-build-fixes: ACPI: Fix incompatibility with mcount-based function graph tracing * acpi-apei-fixes: ACPI / APEI: Add missing synchronize_rcu() on NOTIFY_SCI removal
2017-03-31Merge tag 'nfs-for-4.11-3' of git://git.linux-nfs.org/projects/anna/linux-nfsLinus Torvalds
Pull NFS client fixes from Anna Schumaker: "Here are a few more bugfixes that came in over the last couple of weeks. Most of these fix various hangs and loops that people found, but we also had a few error handling fixes. Stable Bugfixes: - fix infinite loop on BAD_STATEID error Other Bugfixes: - fix old dentry rehash after move - fix pnfs GETDEVINFO hangs - fix pnfs fallback to MDS on commit errors - fix flexfiles kernel oops" * tag 'nfs-for-4.11-3' of git://git.linux-nfs.org/projects/anna/linux-nfs: nfs: flexfiles: fix kernel OOPS if MDS returns unsupported DS type NFSv4.1 fix infinite loop on IO BAD_STATEID error PNFS fix fallback to MDS if got error on commit to DS NFS filelayout:call GETDEVICEINFO after pnfs_layout_process completes NFS store nfs4_deviceid in struct nfs4_filelayout_segment NFS cleanup struct nfs4_filelayout_segment NFS: Fix old dentry rehash after move
2017-03-31Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "The main thing is a fix for a NULL dereference on systems that boot using spin-tables or the ACPI parking protocol, but there are also a couple of trivial one-liners too. We're currently debugging a page flags corruption issue under syzkaller, but we're still some way from fixing that as it's proving fiddly to reproduce. Summary: - fix cpu_die() NULL dereference when booting secondary CPUs using spin-table - remove redundant #include - remove obsolete .gitignore entry" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: drop non-existing vdso-offsets.h from .gitignore arm64: remove redundant header file in current.h arm64: fix NULL dereference in have_cpu_die()
2017-03-31Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "This fixes the following issues: - memory corruption when kmalloc fails in xts/lrw - mark some CCP DMA channels as private - fix reordering race in padata - regression in omap-rng DT description" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: xts,lrw - fix out-of-bounds write after kmalloc failure crypto: ccp - Make some CCP DMA channels private padata: avoid race in reordering dt-bindings: rng: clocks property on omap_rng not always mandatory
2017-03-31Merge tag 'mmc-v4.11-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: "Here are a couple of mmc fixes intended for v4.11 rc5. MMC host: - sdhci: Fix bug when using SDIO IRQ - sdhci-of-at91: Fix eMMC DDR52 card detection" * tag 'mmc-v4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdhci-of-at91: fix MMC_DDR_52 timing selection mmc: sdhci: Disable runtime pm when the sdio_irq is enabled
2017-03-31Merge tag 'sound-4.11-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "At this time, most of changes are for ASoC, while we got one fix for yet another race of ALSA sequencer core and a usual HD-audio quirk. The ASoC changes are mostly small and device-specific fixes. A slightly large volume is seen in sun8i-codec, which is a new code in 4.11, and we'd like to fix user-visible stuff before the official 4.1 release" * tag 'sound-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (27 commits) ALSA: hda - fix a problem for lineout on a Dell AIO machine ASoC: simple-card: fix simple_dai clk lookup ASoC: STI: Fix reader substream pointer set ALSA: seq: Fix race during FIFO resize ARM: dts: sun8i: Update audio-routing with renamed widgets ASoC: sun8i-codec: Convert to use SND_SOC_DAPM_AIF_IN ASoC: sun8i-codec: Fix space on audio-routing widget ASoC: sun8i-codec: Update mixer to use SOC_DAPM_DOUBLE ASoC: sun8i-codec: Remove analog "HP" widget ASoC: rt5665: fix wrong shift rt5665_if2_1_adc_in_enum ASoC: rt5665: fix define of RT5665_HP_DRIVER_5X ASoC: rcar: dma: remove unnecessary "volatile" ASoC: rcar: clear DE bit only in PDMACHCR when it stops ASoC: rsnd: fix sound route path when using SRC6/SRC9 ASoC: don't dereference NULL pcm_{new,free} ASoC: rt5665: CLKDET is also a power of ASRC ASoC: rt5665: Vref3 is necessary for Mono Amp ASoC: rt5665: increase LDO level ASoC: rt5665: fix getting wrong work handler container ASoC: atmel-classd: fix audio clock rate ...
2017-03-31Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid Pull HID fixes from Jiri Kosina: - Wacom regression fixes, from Aaron Armstrong Skomra - new device ID addition by Peter Stein * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: wacom: call _query_tablet_data() for BAMBOO_TOUCH HID: wacom: Don't add ghost interface as shared data HID: xinmo: fix for out of range for THT 2P arcade controller.
2017-03-31Merge tag 'drm-fixes-for-v4.11-rc5' of ↵Linus Torvalds
git://people.freedesktop.org/~airlied/linux Pull drm fixes from Dave Airlie: "Seems to be quietening down, which means someone will make a liar of me for rc6. Just one vc4, one etnvaiv, one radeon, and a few i915 GVT fixes, and one i915 normal fixes" * tag 'drm-fixes-for-v4.11-rc5' of git://people.freedesktop.org/~airlied/linux: drm/vc4: Allocate the right amount of space for boot-time CRTC state. drm/etnaviv: (re-)protect fence allocation with GPU mutex drm/radeon: Override fpfn for all VRAM placements in radeon_evict_flags drm/i915: Restore marking context objects as dirty on pinning drm/i915/gvt: Use force single submit flag to distinguish gvt request from i915 request drm/i915/gvt: set shadow entry to scratch page while p2m failed drm/i915/gvt: Fix guest fail to read EDID leading to black guest console issue. drm/i915/gvt: fix wrong offset when loading RCS mocs drm/i915/gvt: add write handler for mmio mbctl drm/i915/kvmgt: Hold struct kvm reference
2017-03-31nfs: flexfiles: fix kernel OOPS if MDS returns unsupported DS typeTigran Mkrtchyan
this fix aims to fix dereferencing of a mirror in an error state when MDS returns unsupported DS type (IOW, not v3), which causes the following oops: [ 220.370709] BUG: unable to handle kernel NULL pointer dereference at 0000000000000065 [ 220.370842] IP: ff_layout_mirror_valid+0x2d/0x110 [nfs_layout_flexfiles] [ 220.370920] PGD 0 [ 220.370972] Oops: 0000 [#1] SMP [ 220.371013] Modules linked in: nfnetlink_queue nfnetlink_log bluetooth nfs_layout_flexfiles rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_raw ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security iptable_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c iptable_mangle iptable_security ebtable_filter ebtables ip6table_filter ip6_tables binfmt_misc intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel btrfs kvm arc4 snd_hda_codec_hdmi iwldvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel intel_cstate mac80211 xor uvcvideo [ 220.371814] videobuf2_vmalloc videobuf2_memops snd_hda_codec_idt mei_wdt videobuf2_v4l2 snd_hda_codec_generic iTCO_wdt ppdev videobuf2_core iTCO_vendor_support dell_rbtn dell_wmi iwlwifi sparse_keymap dell_laptop dell_smbios snd_hda_intel dcdbas videodev snd_hda_codec dell_smm_hwmon snd_hda_core media cfg80211 intel_uncore snd_hwdep raid6_pq snd_seq intel_rapl_perf snd_seq_device joydev i2c_i801 rfkill lpc_ich snd_pcm parport_pc mei_me parport snd_timer dell_smo8800 mei snd shpchp soundcore tpm_tis tpm_tis_core tpm nfsd auth_rpcgss nfs_acl lockd grace sunrpc i915 nouveau mxm_wmi ttm i2c_algo_bit drm_kms_helper crc32c_intel e1000e drm sdhci_pci firewire_ohci sdhci serio_raw mmc_core firewire_core ptp crc_itu_t pps_core wmi fjes video [ 220.372568] CPU: 7 PID: 4988 Comm: cat Not tainted 4.10.5-200.fc25.x86_64 #1 [ 220.372647] Hardware name: Dell Inc. Latitude E6520/0J4TFW, BIOS A06 07/11/2011 [ 220.372729] task: ffff94791f6ea580 task.stack: ffffb72b88c0c000 [ 220.372802] RIP: 0010:ff_layout_mirror_valid+0x2d/0x110 [nfs_layout_flexfiles] [ 220.372883] RSP: 0018:ffffb72b88c0f970 EFLAGS: 00010246 [ 220.372945] RAX: 0000000000000000 RBX: ffff9479015ca600 RCX: ffffffffffffffed [ 220.373025] RDX: ffffffffffffffed RSI: ffff9479753dc980 RDI: 0000000000000000 [ 220.373104] RBP: ffffb72b88c0f988 R08: 000000000001c980 R09: ffffffffc0ea6112 [ 220.373184] R10: ffffef17477d9640 R11: ffff9479753dd6c0 R12: ffff9479211c7440 [ 220.373264] R13: ffff9478f45b7790 R14: 0000000000000001 R15: ffff9479015ca600 [ 220.373345] FS: 00007f555fa3e700(0000) GS:ffff9479753c0000(0000) knlGS:0000000000000000 [ 220.373435] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 220.373506] CR2: 0000000000000065 CR3: 0000000196044000 CR4: 00000000000406e0 [ 220.373586] Call Trace: [ 220.373627] nfs4_ff_layout_prepare_ds+0x5e/0x200 [nfs_layout_flexfiles] [ 220.373708] ff_layout_pg_init_read+0x81/0x160 [nfs_layout_flexfiles] [ 220.373806] __nfs_pageio_add_request+0x11f/0x4a0 [nfs] [ 220.373886] ? nfs_create_request.part.14+0x37/0x330 [nfs] [ 220.373967] nfs_pageio_add_request+0xb2/0x260 [nfs] [ 220.374042] readpage_async_filler+0xaf/0x280 [nfs] [ 220.374103] read_cache_pages+0xef/0x1b0 [ 220.374166] ? nfs_read_completion+0x210/0x210 [nfs] [ 220.374239] nfs_readpages+0x129/0x200 [nfs] [ 220.374293] __do_page_cache_readahead+0x1d0/0x2f0 [ 220.374352] ondemand_readahead+0x17d/0x2a0 [ 220.374403] page_cache_sync_readahead+0x2e/0x50 [ 220.374460] generic_file_read_iter+0x6c8/0x950 [ 220.374532] ? nfs_mapping_need_revalidate_inode+0x17/0x40 [nfs] [ 220.374617] nfs_file_read+0x6e/0xc0 [nfs] [ 220.374670] __vfs_read+0xe2/0x150 [ 220.374715] vfs_read+0x96/0x130 [ 220.374758] SyS_read+0x55/0xc0 [ 220.374801] entry_SYSCALL_64_fastpath+0x1a/0xa9 [ 220.374856] RIP: 0033:0x7f555f570bd0 [ 220.374900] RSP: 002b:00007ffeb73e1b38 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 220.374986] RAX: ffffffffffffffda RBX: 00007f555f839ae0 RCX: 00007f555f570bd0 [ 220.375066] RDX: 0000000000020000 RSI: 00007f555fa41000 RDI: 0000000000000003 [ 220.375145] RBP: 0000000000021010 R08: ffffffffffffffff R09: 0000000000000000 [ 220.375226] R10: 00007f555fa40010 R11: 0000000000000246 R12: 0000000000022000 [ 220.375305] R13: 0000000000021010 R14: 0000000000001000 R15: 0000000000002710 [ 220.375386] Code: 66 66 90 55 48 89 e5 41 54 53 49 89 fc 48 83 ec 08 48 85 f6 74 2e 48 8b 4e 30 48 89 f3 48 81 f9 00 f0 ff ff 77 1e 48 85 c9 74 15 <48> 83 79 78 00 b8 01 00 00 00 74 2c 48 83 c4 08 5b 41 5c 5d c3 [ 220.375653] RIP: ff_layout_mirror_valid+0x2d/0x110 [nfs_layout_flexfiles] RSP: ffffb72b88c0f970 [ 220.375748] CR2: 0000000000000065 [ 220.403538] ---[ end trace bcdca752211b7da9 ]--- Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2017-03-31NFSv4.1 fix infinite loop on IO BAD_STATEID errorOlga Kornievskaia
Commit 63d63cbf5e03 "NFSv4.1: Don't recheck delegations that have already been checked" introduced a regression where when a client received BAD_STATEID error it would not send any TEST_STATEID and instead go into an infinite loop of resending the IO that caused the BAD_STATEID. Fixes: 63d63cbf5e03 ("NFSv4.1: Don't recheck delegations that have already been checked") Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Cc: stable@vger.kernel.org # 4.9+ Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2017-03-31serial: 8250_EXAR: fix duplicate Kconfig text and add missing help textPaul Gortmaker
In commit d0aeaa83f0b0f7a92615bbdd6b1f96812f7dcfd2 ("serial: exar: split out the exar code from 8250_pci") the exar driver got its own Kconfig. However the text for the new option was never changed from the original 8250_PCI text, and hence it appears confusing when you get asked the same question twice: 8250/16550 PCI device support (SERIAL_8250_PCI) [Y/n/m/?] (NEW) 8250/16550 PCI device support (SERIAL_8250_EXAR) [Y/n/m] (NEW) Adding to the confusion, is that there is no help text for this new option to indicate it is specific to a certain family of cards. Fix both issues at the same time, as well as the space vs. tab issues introduced in the same commit. Fixes: d0aeaa83f0b0 ("serial: exar: split out the exar code from 8250_pci") Cc: Jiri Slaby <jslaby@suse.com> Cc: linux-serial@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-31tty/serial: atmel: fix TX path in atmel_console_write()Nicolas Ferre
A side effect of 89d8232411a8 ("tty/serial: atmel_serial: BUG: stop DMA from transmitting in stop_tx") is that the console can be called with TX path disabled. Then the system would hang trying to push charecters out in atmel_console_putchar(). Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Fixes: 89d8232411a8 ("tty/serial: atmel_serial: BUG: stop DMA from transmitting in stop_tx") Cc: stable <stable@vger.kernel.org> #4.4+ Acked-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-31tty/serial: atmel: fix race condition (TX+DMA)Richard Genoud
If uart_flush_buffer() is called between atmel_tx_dma() and atmel_complete_tx_dma(), the circular buffer has been cleared, but not atmel_port->tx_len. That leads to a circular buffer overflow (dumping (UART_XMIT_SIZE - atmel_port->tx_len) bytes). Tested-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Cc: stable <stable@vger.kernel.org> # 3.12+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-31serial: mxs-auart: Fix baudrate calculationUwe Kleine-König
The reference manual for the i.MX28 recommends to calculate the divisor as divisor = (UARTCLK * 32) / baud rate, rounded to the nearest integer , so let's do this. For a typical setup of UARTCLK = 24 MHz and baud rate = 115200 this changes the divisor from 6666 to 6667 and so the actual baud rate improves from 115211.521 Bd (error ≅ 0.01 %) to 115194.240 Bd (error ≅ 0.005 %). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-31Merge tag 'irq-fixes-4.11-rc5' of ↵Thomas Gleixner
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent Pull irqchip fixes from Marc Zyngier - Fix mvebu-odmi dependency selection - Fix mips-gic virtual/hw mapping
2017-03-31irqchip/mips-gic: Fix Local compare interruptMatt Redfearn
Commit 4cfffcfa5106 ("irqchip/mips-gic: Fix local interrupts") added mapping of several local interrupts during initialisation of the gic driver. This associates virq numbers with these interrupts. Unfortunately, as not all of the interrupts are mapped in hardware order, when drivers subsequently request these interrupts they conflict with the mappings that have already been set up. For example, this manifests itself in the gic clocksource driver, which fails to probe with the message: clocksource: GIC: mask: 0xffffffffffffffff max_cycles: 0x7350c9738, max_idle_ns: 440795203769 ns GIC timer IRQ 25 setup failed: -22 This is because virq 25 (the correct IRQ number specified via device tree) was allocated to the PERFCTR interrupt (and 24 to the timer, 26 to the FDC). To fix this, map all of these local interrupts in the hardware order so as to associate their virq numbers with the correct hw interrupts. Fixes: 4cfffcfa5106 ("irqchip/mips-gic: Fix local interrupts") Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-03-31ALSA: hda - fix a problem for lineout on a Dell AIO machineHui Wang
On this Dell AIO machine, the lineout jack does not work. We found the pin 0x1a is assigned to lineout on this machine, and in the past, we applied ALC298_FIXUP_DELL1_MIC_NO_PRESENCE to fix the heaset-set mic problem for this machine, this fixup will redefine the pin 0x1a to headphone-mic, as a result the lineout doesn't work anymore. After consulting with Dell, they told us this machine doesn't support microphone via headset jack, so we add a new fixup which only defines the pin 0x18 as the headset-mic. [rearranged the fixup insertion position by tiwai in order to make the merge with other branches easier -- tiwai] Fixes: 59ec4b57bcae ("ALSA: hda - Fix headset mic detection problem for two dell machines") Cc: <stable@vger.kernel.org> Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-03-31x86/boot: Include missing header fileZhengyi Shen
Sparse complains about missing forward declarations: arch/x86/boot/compressed/error.c:8:6: warning: symbol 'warn' was not declared. Should it be static? arch/x86/boot/compressed/error.c:15:6: warning: symbol 'error' was not declared. Should it be static? Include the missing header file. Signed-off-by: Zhengyi Shen <shenzhengyi@gmail.com> Acked-by: Kess Cook <keescook@chromium.org> Link: http://lkml.kernel.org/r/1490770820-24472-1-git-send-email-shenzhengyi@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>