- 21 Oct, 2019 40 commits
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Vasily Averin authored
BugLink: https://bugs.launchpad.net/bugs/1848589 commit d5880c7a upstream. unlock_page() was missing in case of an already in-flight write against the same page. Signed-off-by:
Vasily Averin <vvs@virtuozzo.com> Fixes: ff17be08 ("fuse: writepage: skip already in flight") Cc: <stable@vger.kernel.org> # v3.13 Signed-off-by:
Miklos Szeredi <mszeredi@redhat.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Connor Kuehl <connor.kuehl@canonical.com> Signed-off-by:
Kleber Sacilotto de Souza <kleber.souza@canonical.com>
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Vincent Whitchurch authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit b46eff55ad5bd98e746c0a7022fe7ee071de5fee ] kmsg_dump_get_buffer() is supposed to select all the youngest log messages which fit into the provided buffer. It determines the correct start index by using msg_print_text() with a NULL buffer to calculate the size of each entry. However, when performing the actual writes, msg_print_text() only writes the entry to the buffer if the written len is lesser than the size of the buffer. So if the lengths of the selected youngest log messages happen to precisely fill up the provided buffer, the last log message is not included. We don't want to modify msg_print_text() to fill up the buffer and start returning a length which is equal to the size of the buffer, since callers of its other users, such as kmsg_dump_get_line(), depend upon the current behaviour. Instead, fix kmsg_dump_get_buffer() to compensate for this. For example, with the following two final prints: [ 6.427502] AAAAAAAAAAAAA [ 6.427769] BBBBBBBB12345 A dump of a 64-byte buffer filled by kmsg_dump_get_buffer(), before this patch: 00000000: 3c 30 3e 5b 20 20 20 20 36 2e 35 32 32 31 39 37 <0>[ 6.522197 00000010: 5d 20 41 41 41 41 41 41 41 41 41 41 41 41 41 0a ] AAAAAAAAAAAAA. 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ After this patch: 00000000: 3c 30 3e 5b 20 20 20 20 36 2e 34 35 36 36 37 38 <0>[ 6.456678 00000010: 5d 20 42 42 42 42 42 42 42 42 31 32 33 34 35 0a ] BBBBBBBB12345. 00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ Link: http://lkml.kernel.org/r/20190711142937.4083-1-vincent.whitchurch@axis.com Fixes: e2ae715d ("kmsg - kmsg_dump() use iterator to receive log buffer content") To: rostedt@goodmis.org Cc: linux-kernel@vger.kernel.org Cc: <stable@vger.kernel.org> # v3.5+ Signed-off-by:
Vincent Whitchurch <vincent.whitchurch@axis.com> Reviewed-by:
Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by:
Petr Mladek <pmladek@suse.com> Signed-off-by:
Sasha Levin <sashal@kernel.org> Signed-off-by:
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Takashi Sakamoto authored
BugLink: https://bugs.launchpad.net/bugs/1848589 commit e1a00b5b upstream. 2 bytes in MSB of register for clock status is zero during intermediate state after changing status of sampling clock in models of TASCAM FireWire series. The duration of this state differs depending on cases. During the state, it's better to retry reading the register for current status of the clock. In current implementation, the intermediate state is checked only when getting current sampling transmission frequency, then retry reading. This care is required for the other operations to read the register. This commit moves the codes of check and retry into helper function commonly used for operations to read the register. Fixes: e453df44 ("ALSA: firewire-tascam: add PCM functionality") Cc: <stable@vger.kernel.org> # v4.4+ Signed-off-by:
Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20190910135152.29800-3-o-takashi@sakamocchi.jpSigned-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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Takashi Sakamoto authored
BugLink: https://bugs.launchpad.net/bugs/1848589 commit 2617120f upstream. The return value of snd_tscm_stream_get_clock() is ignored. This commit checks the value and handle error. Fixes: e453df44 ("ALSA: firewire-tascam: add PCM functionality") Cc: <stable@vger.kernel.org> # v4.4+ Signed-off-by:
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Sakari Ailus authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit e9eb103f ] The omap3isp driver registered subdevs without the dev field being set. Do that now. Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by:
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Qu Wenruo authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 2a28468e ] [BUG] With fuzzed image and MIXED_GROUPS super flag, we can hit the following BUG_ON(): kernel BUG at fs/btrfs/delayed-ref.c:491! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 0 PID: 1849 Comm: sync Tainted: G O 5.2.0-custom #27 RIP: 0010:update_existing_head_ref.cold+0x44/0x46 [btrfs] Call Trace: add_delayed_ref_head+0x20c/0x2d0 [btrfs] btrfs_add_delayed_tree_ref+0x1fc/0x490 [btrfs] btrfs_free_tree_block+0x123/0x380 [btrfs] __btrfs_cow_block+0x435/0x500 [btrfs] btrfs_cow_block+0x110/0x240 [btrfs] btrfs_search_slot+0x230/0xa00 [btrfs] ? __lock_acquire+0x105e/0x1e20 btrfs_insert_empty_items+0x67/0xc0 [btrfs] alloc_reserved_file_extent+0x9e/0x340 [btrfs] __btrfs_run_delayed_refs+0x78e/0x1240 [btrfs] ? kvm_clock_read+0x18/0x30 ? __sched_clock_gtod_offset+0x21/0x50 btrfs_run_delayed_refs.part.0+0x4e/0x180 [btrfs] btrfs_run_delayed_refs+0x23/0x30 [btrfs] btrfs_commit_transaction+0x53/0x9f0 [btrfs] btrfs_sync_fs+0x7c/0x1c0 [btrfs] ? __ia32_sys_fdatasync+0x20/0x20 sync_fs_one_sb+0x23/0x30 iterate_supers+0x95/0x100 ksys_sync+0x62/0xb0 __ia32_sys_sync+0xe/0x20 do_syscall_64+0x65/0x240 entry_SYSCALL_64_after_hwframe+0x49/0xbe [CAUSE] This situation is caused by several factors: - Fuzzed image The extent tree of this fs missed one backref for extent tree root. So we can allocated space from that slot. - MIXED_BG feature Super block has MIXED_BG flag. - No mixed block groups exists All block groups are just regular ones. This makes data space_info->block_groups[] contains metadata block groups. And when we reserve space for data, we can use space in metadata block group. Then we hit the following file operations: - fallocate We need to allocate data extents. find_free_extent() choose to use the metadata block to allocate space from, and choose the space of extent tree root, since its backref is missing. This generate one delayed ref head with is_data = 1. - extent tree update We need to update extent tree at run_delayed_ref time. This generate one delayed ref head with is_data = 0, for the same bytenr of old extent tree root. Then we trigger the BUG_ON(). [FIX] The quick fix here is to check block_group->flags before using it. The problem can only happen for MIXED_GROUPS fs. Regular filesystems won't have space_info with DATA|METADATA flag, and no way to hit the bug. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=203255Reported-by:
Jungyeon Yoon <jungyeon.yoon@gmail.com> Signed-off-by:
Qu Wenruo <wqu@suse.com> Signed-off-by:
David Sterba <dsterba@suse.com> Signed-off-by:
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Takashi Iwai authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 051c78af ] Lenovo ThinkCentre M73 and M93 don't seem to have a proper beep although the driver tries to probe and set up blindly. Blacklist these machines for suppressing the beep creation. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204635Signed-off-by:
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Tomas Bortoli authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit a10feaf8 ] The function at issue does not always initialize each byte allocated for 'b' and can therefore leak uninitialized memory to a USB device in the call to usb_bulk_msg() Use kzalloc() instead of kmalloc() Signed-off-by:
Tomas Bortoli <tomasbortoli@gmail.com> Reported-by: syzbot+0522702e9d67142379f1@syzkaller.appspotmail.com Signed-off-by:
Sean Young <sean@mess.org> Signed-off-by:
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Kevin Easton authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 764f3f1e ] This sentinel tells the firmware loading process when to stop. Reported-and-tested-by: syzbot+98156c174c5a2cad9f8f@syzkaller.appspotmail.com Signed-off-by:
Kevin Easton <kevin@guarana.org> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> Signed-off-by:
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Al Cooper authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit c894e33d ] When switching from any MMC speed mode that requires 1.8v (HS200, HS400 and HS400ES) to High Speed (HS) mode, the system ends up configured for SDR12 with a 50MHz clock which is an illegal mode. This happens because the SDHCI_CTRL_VDD_180 bit in the SDHCI_HOST_CONTROL2 register is left set and when this bit is set, the speed mode is controlled by the SDHCI_CTRL_UHS field in the SDHCI_HOST_CONTROL2 register. The SDHCI_CTRL_UHS field will end up being set to 0 (SDR12) by sdhci_set_uhs_signaling() because there is no UHS mode being set. The fix is to change sdhci_set_uhs_signaling() to set the SDHCI_CTRL_UHS field to SDR25 (which is the same as HS) for any switch to HS mode. This was found on a new eMMC controller that does strict checking of the speed mode and the corresponding clock rate. It caused the switch to HS400 mode to fail because part of the sequence to switch to HS400 requires a switch from HS200 to HS before going to HS400. Suggested-by:
Adrian Hunter <adrian.hunter@intel.com> Signed-off-by:
Al Cooper <alcooperx@gmail.com> Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
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Peter Ujfalusi authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 2ec42f31 ] Some tools use the snd_pcm_info_get_name() to try to identify PCMs or for other purposes. Currently it is left empty with the dmaengine-pcm, in this case copy the pcm->id string as pcm->name. For example IGT is using this to find the HDMI PCM for testing audio on it. Signed-off-by:
Peter Ujfalusi <peter.ujfalusi@ti.com> Reported-by:
Arthur She <arthur.she@linaro.org> Link: https://lore.kernel.org/r/20190906055524.7393-1-peter.ujfalusi@ti.comSigned-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Masami Hiramatsu authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit e336b402 ] Since BUG() and WARN() may use a trap (e.g. UD2 on x86) to get the address where the BUG() has occurred, kprobes can not do single-step out-of-line that instruction. So prohibit probing on such address. Without this fix, if someone put a kprobe on WARN(), the kernel will crash with invalid opcode error instead of outputing warning message, because kernel can not find correct bug address. Signed-off-by:
Masami Hiramatsu <mhiramat@kernel.org> Acked-by:
Steven Rostedt (VMware) <rostedt@goodmis.org> Acked-by:
Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: David S . Miller <davem@davemloft.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Naveen N . Rao <naveen.n.rao@linux.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/156750890133.19112.3393666300746167111.stgit@devnote2Signed-off-by:
Ingo Molnar <mingo@kernel.org> Signed-off-by:
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Peter Ujfalusi authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit c5dbe606 ] Skip resetting paRAM slots marked as reserved as they might be used by other cores. Signed-off-by:
Vinod Koul <vkoul@kernel.org> Signed-off-by:
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Yufen Yu authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 07f1a685 ] When run test case: mdadm -CR /dev/md1 -l 1 -n 4 /dev/sd[a-d] --assume-clean --bitmap=internal mdadm -S /dev/md1 mdadm -A /dev/md1 /dev/sd[b-c] --run --force mdadm --zero /dev/sda mdadm /dev/md1 -a /dev/sda echo offline > /sys/block/sdc/device/state echo offline > /sys/block/sdb/device/state sleep 5 mdadm -S /dev/md1 echo running > /sys/block/sdb/device/state echo running > /sys/block/sdc/device/state mdadm -A /dev/md1 /dev/sd[a-c] --run --force mdadm run fail with kernel message as follow: [ 172.986064] md: kicking non-fresh sdb from array! [ 173.004210] md: kicking non-fresh sdc from array! [ 173.022383] md/raid1:md1: active with 0 out of 4 mirrors [ 173.022406] md1: failed to create bitmap (-5) In fact, when active disk in raid1 array less than one, we need to return fail in raid1_run(). Reviewed-by:
NeilBrown <neilb@suse.de> Signed-off-by:
Yufen Yu <yuyufen@huawei.com> Signed-off-by:
Song Liu <songliubraving@fb.com> Signed-off-by:
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Wang Shenran authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 6e4d91aa ] At boot time, the acpi_power_meter driver logs the following error level message: "Ignoring unsafe software power cap". Having read about it from a few sources, it seems that the error message can be quite misleading. While the message can imply that Linux is ignoring the fact that the system is operating in potentially dangerous conditions, the truth is the driver found an ACPI_PMC object that supports software power capping. The driver simply decides not to use it, perhaps because it doesn't support the object. The best solution is probably changing the log level from error to warning. All sources I have found, regarding the error, have downplayed its significance. There is not much of a reason for it to be on error level, while causing potential confusions or misinterpretations. Signed-off-by:
Wang Shenran <shenran268@gmail.com> Link: https://lore.kernel.org/r/20190724080110.6952-1-shenran268@gmail.comSigned-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
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Wenwen Wang authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 03d1571d ] In cm_write(), 'buf' is allocated through kzalloc(). In the following execution, if an error occurs, 'buf' is not deallocated, leading to memory leaks. To fix this issue, free 'buf' before returning the error. Fixes: 526b4af4 ("ACPI: Split out custom_method functionality into an own driver") Signed-off-by:
Wenwen Wang <wenwen@cs.uga.edu> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
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Tzvetomir Stoyanov authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit e97fd138 ] To be compliant with XDG user directory layout, the user's plugin directory is changed from ~/.traceevent/plugins to ~/.local/lib/traceevent/plugins/ Suggested-by:
Patrick McLean <chutzpah@gentoo.org> Signed-off-by:
Tzvetomir Stoyanov <tstoyanov@vmware.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Patrick McLean <chutzpah@gentoo.org> Cc: linux-trace-devel@vger.kernel.org Link: https://lore.kernel.org/linux-trace-devel/20190313144206.41e75cf8@patrickm/ Link: http://lore.kernel.org/linux-trace-devel/20190801074959.22023-4-tz.stoyanov@gmail.com Link: http://lore.kernel.org/lkml/20190805204355.344622683@goodmis.orgSigned-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
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Al Stone authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 4c4cdc4c ] According to the ACPI 6.3 specification, the _PSD method is optional when using CPPC. The underlying assumption is that each CPU can change frequency independently from all other CPUs; _PSD is provided to tell the OS that some processors can NOT do that. However, the acpi_get_psd() function returns ENODEV if there is no _PSD method present, or an ACPI error status if an error occurs when evaluating _PSD, if present. This makes _PSD mandatory when using CPPC, in violation of the specification, and only on Linux. This has forced some firmware writers to provide a dummy _PSD, even though it is irrelevant, but only because Linux requires it; other OSPMs follow the spec. We really do not want to have OS specific ACPI tables, though. So, correct acpi_get_psd() so that it does not return an error if there is no _PSD method present, but does return a failure when the method can not be executed properly. This allows _PSD to be optional as it should be. Signed-off-by:
Al Stone <ahs3@redhat.com> Signed-off-by:
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Mauro Carvalho Chehab authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 093347ab ] As pointed by cppcheck: [drivers/media/i2c/ov9650.c:706]: (error) Shifting by a negative value is undefined behaviour [drivers/media/i2c/ov9650.c:707]: (error) Shifting by a negative value is undefined behaviour [drivers/media/i2c/ov9650.c:721]: (error) Shifting by a negative value is undefined behaviour Prevent mangling with gains with invalid values. As pointed by Sylvester, this should never happen in practice, as min value of V4L2_CID_GAIN control is 16 (gain is always >= 16 and m is always >= 0), but it is too hard for a static analyzer to get this, as the logic with validates control min/max is elsewhere inside V4L2 core. Reviewed-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by:
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Maciej S. Szmigiero authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 9d802222 ] saa7134_i2c_eeprom_md7134_gate() function and the associated comment uses an inverted i2c gate open / closed terminology. Let's fix this. Signed-off-by:
Maciej S. Szmigiero <mail@maciej.szmigiero.name> Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: fix alignment checkpatch warning] Signed-off-by:
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Wenwen Wang authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 1c770f0f ] In submit_urbs(), 'cam->sbuf[i].data' is allocated through kmalloc_array(). However, it is not deallocated if the following allocation for urbs fails. To fix this issue, free 'cam->sbuf[i].data' if usb_alloc_urb() fails. Signed-off-by:
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Wenwen Wang authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 42e64117 ] If saa7146_register_device() fails, no cleanup is executed, leading to memory/resource leaks. To fix this issue, perform necessary cleanup work before returning the error. Signed-off-by:
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Hans Verkuil authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 8b8900b7 ] dev->usbc_buf was passed as argument for %s, but it was not safeguarded by a terminating 0. This caused this syzbot issue: https://syzkaller.appspot.com/bug?extid=79d18aac4bf1770dd050 Reported-and-tested-by: syzbot+79d18aac4bf1770dd050@syzkaller.appspotmail.com Signed-off-by:
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Hans Verkuil authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 0d616f2a ] In the probe() function radio->int_in_urb was not killed if an error occurred in the probe sequence. It was also missing in the disconnect. This caused this syzbot issue: https://syzkaller.appspot.com/bug?extid=2d4fc2a0c45ad8da7e99 Reported-and-tested-by: syzbot+2d4fc2a0c45ad8da7e99@syzkaller.appspotmail.com Signed-off-by:
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Arnd Bergmann authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit de6f97b2 ] compile-testing this driver on other architectures showed multiple warnings: drivers/net/ethernet/nxp/lpc_eth.c: In function 'lpc_eth_drv_probe': drivers/net/ethernet/nxp/lpc_eth.c:1337:19: warning: format '%d' expects argument of type 'int', but argument 4 has type 'resource_size_t {aka long long unsigned int}' [-Wformat=] drivers/net/ethernet/nxp/lpc_eth.c:1342:19: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'dma_addr_t {aka long long unsigned int}' [-Wformat=] Use format strings that work on all architectures. Link: https://lore.kernel.org/r/20190809144043.476786-10-arnd@arndb.deReported-by:
kbuild test robot <lkp@intel.com> Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Sakari Ailus authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 7ef57be0 ] The streaming state should be set to the first upstream sub-device only, not everywhere, for a sub-device driver itself knows how to best control the streaming state of its own upstream sub-devices. Signed-off-by:
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Arnd Bergmann authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 00c97555 ] When compile-testing on other architectures, we get lots of warnings about incorrect format strings, like: drivers/dma/iop-adma.c: In function 'iop_adma_alloc_slots': drivers/dma/iop-adma.c:307:6: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t {aka long long unsigned int}' [-Wformat=] drivers/dma/iop-adma.c: In function 'iop_adma_prep_dma_memcpy': >> drivers/dma/iop-adma.c:518:40: warning: format '%u' expects argument of type 'unsigned int', but argument 5 has type 'size_t {aka long unsigned int}' [-Wformat=] Use %zu for printing size_t as required, and cast the dma_addr_t arguments to 'u64' for printing with %llx. Ideally this should use the %pad format string, but that requires an lvalue argument that doesn't work here. Link: https://lore.kernel.org/r/20190809163334.489360-3-arnd@arndb.deSigned-off-by:
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Hans Verkuil authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 4843a543 ] If reg_r() fails, then gspca_dev->usb_buf was left uninitialized, and some drivers used the contents of that buffer in logic. This caused several syzbot errors: https://syzkaller.appspot.com/bug?extid=397fd082ce5143e2f67d https://syzkaller.appspot.com/bug?extid=1a35278dd0ebfb3a038a https://syzkaller.appspot.com/bug?extid=06ddf1788cfd048c5e82 I analyzed the gspca drivers and zeroed the buffer where needed. Reported-and-tested-by: syzbot+1a35278dd0ebfb3a038a@syzkaller.appspotmail.com Reported-and-tested-by: syzbot+397fd082ce5143e2f67d@syzkaller.appspotmail.com Reported-and-tested-by: syzbot+06ddf1788cfd048c5e82@syzkaller.appspotmail.com Signed-off-by:
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Xiaofei Tan authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit b194a77f ] AER info of PCIe fatal error is not printed in the current driver. Because APEI driver will panic directly for fatal error, and can't run to the place of printing AER info. An example log is as following: {763}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 11 {763}[Hardware Error]: event severity: fatal {763}[Hardware Error]: Error 0, type: fatal {763}[Hardware Error]: section_type: PCIe error {763}[Hardware Error]: port_type: 0, PCIe end point {763}[Hardware Error]: version: 4.0 {763}[Hardware Error]: command: 0x0000, status: 0x0010 {763}[Hardware Error]: device_id: 0000:82:00.0 {763}[Hardware Error]: slot: 0 {763}[Hardware Error]: secondary_bus: 0x00 {763}[Hardware Error]: vendor_id: 0x8086, device_id: 0x10fb {763}[Hardware Error]: class_code: 000002 Kernel panic - not syncing: Fatal hardware error! This issue was imported by the patch, '37448adf ("aerdrv: Move cper_print_aer() call out of interrupt context")'. To fix this issue, this patch adds print of AER info in cper_print_pcie() for fatal error. Here is the example log after this patch applied: {24}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 10 {24}[Hardware Error]: event severity: fatal {24}[Hardware Error]: Error 0, type: fatal {24}[Hardware Error]: section_type: PCIe error {24}[Hardware Error]: port_type: 0, PCIe end point {24}[Hardware Error]: version: 4.0 {24}[Hardware Error]: command: 0x0546, status: 0x4010 {24}[Hardware Error]: device_id: 0000:01:00.0 {24}[Hardware Error]: slot: 0 {24}[Hardware Error]: secondary_bus: 0x00 {24}[Hardware Error]: vendor_id: 0x15b3, device_id: 0x1019 {24}[Hardware Error]: class_code: 000002 {24}[Hardware Error]: aer_uncor_status: 0x00040000, aer_uncor_mask: 0x00000000 {24}[Hardware Error]: aer_uncor_severity: 0x00062010 {24}[Hardware Error]: TLP Header: 000000c0 01010000 00000001 00000000 Kernel panic - not syncing: Fatal hardware error! Fixes: 37448adf ("aerdrv: Move cper_print_aer() call out of interrupt context") Signed-off-by:
Xiaofei Tan <tanxiaofei@huawei.com> Reviewed-by:
James Morse <james.morse@arm.com> [ardb: put parens around terms of && operator] Signed-off-by:
Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by:
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Guoqing Jiang authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 062f5b2a ] When a disk is added to array, the following path is called in mdadm. Manage_subdevs -> sysfs_freeze_array -> Manage_add -> sysfs_set_str(&info, NULL, "sync_action","idle") Then from kernel side, Manage_add invokes the path (add_new_disk -> validate_super = super_1_validate) to set In_sync flag. Since In_sync means "device is in_sync with rest of array", and the new added disk need to resync thread to help the synchronization of data. And md_reap_sync_thread would call spare_active to set In_sync for the new added disk finally. So don't set In_sync if array is in frozen. Signed-off-by:
Guoqing Jiang <guoqing.jiang@cloud.ionos.com> Signed-off-by:
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Guoqing Jiang authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 0d8ed0e9 ] When add one disk to array, the md_reap_sync_thread is responsible to activate the spare and set In_sync flag for the new member in spare_active(). But if raid1 has one member disk A, and disk B is added to the array. Then we offline A before all the datas are synchronized from A to B, obviously B doesn't have the latest data as A, but B is still marked with In_sync flag. So let's not call spare_active under the condition, otherwise B is still showed with 'U' state which is not correct. Signed-off-by:
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chenzefeng authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit c5e5c48c ] The function free_module in file kernel/module.c as follow: void free_module(struct module *mod) { ...... module_arch_cleanup(mod); ...... module_arch_freeing_init(mod); ...... } Both module_arch_cleanup and module_arch_freeing_init function would free the mod->arch.init_unw_table, which cause double free. Here, set mod->arch.init_unw_table = NULL after remove the unwind table to avoid double free. Signed-off-by:
chenzefeng <chenzefeng2@huawei.com> Signed-off-by:
Tony Luck <tony.luck@intel.com> Signed-off-by:
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Ard van Breemen authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 1b34121d ] The Linux kernel assumes that get_endpoint(alts,0) and get_endpoint(alts,1) are eachothers feedback endpoints. To reassure that validity it will test bsynchaddress to comply with that assumption. But if the bsyncaddress is 0 (invalid), it will flag that as a wrong assumption and return an error. Fix: Skip the test if bSynchAddress is 0. Note: those with a valid bSynchAddress should have a code quirck added. Signed-off-by:
Ard van Breemen <ard@kwaak.net> Signed-off-by:
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Vinod Koul authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit f7ccc7a3 ] Qcom Socinfo driver can be built as a module, so export these two APIs. Tested-by:
Vaishali Thakkar <vaishali.thakkar@linaro.org> Reviewed-by:
Stephen Boyd <swboyd@chromium.org> Reviewed-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
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Oliver Neukum authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit ab1cbdf1 ] The driver needs to check the endpoint types, too, as opposed to the number of endpoints. This also requires moving the check earlier. Reported-by: syzbot+01a77b82edaa374068e1@syzkaller.appspotmail.com Signed-off-by:
Oliver Neukum <oneukum@suse.com> Signed-off-by:
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Jia-Ju Bai authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 2127c01b ] In build_adc_controls(), there is an if statement on line 773 to check whether ak->adc_info is NULL: if (! ak->adc_info || ! ak->adc_info[mixer_ch].switch_name) When ak->adc_info is NULL, it is used on line 792: knew.name = ak->adc_info[mixer_ch].selector_name; Thus, a possible null-pointer dereference may occur. To fix this bug, referring to lines 773 and 774, ak->adc_info and ak->adc_info[mixer_ch].selector_name are checked before being used. This bug is found by a static analysis tool STCheck written by us. Signed-off-by:
Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by:
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Takashi Iwai authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit dd65f7e1 ] The last fallback of CORB/RIRB communication error recovery is to turn on the single command mode, and this last resort usually means that something is really screwed up. Instead of a normal dev_err(), show the error more clearly with dev_WARN() with the caller stack trace. Also, show the bus-reset fallback also as an error, too. Signed-off-by:
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Thomas Gleixner authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 2640da4c ] If the APIC was already enabled on entry of setup_local_APIC() then disabling it soft via the SPIV register makes a lot of sense. That masks all LVT entries and brings it into a well defined state. Otherwise previously enabled LVTs which are not touched in the setup function stay unmasked and might surprise the just booting kernel. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20190722105219.068290579@linutronix.deSigned-off-by:
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Grzegorz Halat authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit 747d5a1b ] A reboot request sends an IPI via the reboot vector and waits for all other CPUs to stop. If one or more CPUs are in critical regions with interrupts disabled then the IPI is not handled on those CPUs and the shutdown hangs if native_stop_other_cpus() is called with the wait argument set. Such a situation can happen when one CPU was stopped within a lock held section and another CPU is trying to acquire that lock with interrupts disabled. There are other scenarios which can cause such a lockup as well. In theory the shutdown should be attempted by an NMI IPI after the timeout period elapsed. Though the wait loop after sending the reboot vector IPI prevents this. It checks the wait request argument and the timeout. If wait is set, which is true for sys_reboot() then it won't fall through to the NMI shutdown method after the timeout period has finished. This was an oversight when the NMI shutdown mechanism was added to handle the 'reboot IPI is not working' situation. The mechanism was added to deal with stuck panic shutdowns, which do not have the wait request set, so the 'wait request' case was probably not considered. Remove the wait check from the post reboot vector IPI wait loop and enforce that the wait loop in the NMI fallback path is invoked even if NMI IPIs are disabled or the registration of the NMI handler fails. That second wait loop will then hang if not all CPUs shutdown and the wait argument is set. [ tglx: Avoid the hard to parse line break in the NMI fallback path, add comments and massage the changelog ] Fixes: 7d007d21 ("x86/reboot: Use NMI to assist in shutting down if IRQ fails") Signed-off-by:
Grzegorz Halat <ghalat@redhat.com> Signed-off-by:
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Juri Lelli authored
BugLink: https://bugs.launchpad.net/bugs/1848589 [ Upstream commit a07db5c0 ] On !CONFIG_RT_GROUP_SCHED configurations it is currently not possible to move RT tasks between cgroups to which CPU controller has been attached; but it is oddly possible to first move tasks around and then make them RT (setschedule to FIFO/RR). E.g.: # mkdir /sys/fs/cgroup/cpu,cpuacct/group1 # chrt -fp 10 $$ # echo $$ > /sys/fs/cgroup/cpu,cpuacct/group1/tasks bash: echo: write error: Invalid argument # chrt -op 0 $$ # echo $$ > /sys/fs/cgroup/cpu,cpuacct/group1/tasks # chrt -fp 10 $$ # cat /sys/fs/cgroup/cpu,cpuacct/group1/tasks 2345 2598 # chrt -p 2345 pid 2345's current scheduling policy: SCHED_FIFO pid 2345's current scheduling priority: 10 Also, as Michal noted, it is currently not possible to enable CPU controller on unified hierarchy with !CONFIG_RT_GROUP_SCHED (if there are any kernel RT threads in root cgroup, they can't be migrated to the newly created CPU controller's root in cgroup_update_dfl_csses()). Existing code comes with a comment saying the "we don't support RT-tasks being in separate groups". Such comment is however stale and belongs to pre-RT_GROUP_SCHED times. Also, it doesn't make much sense for !RT_GROUP_ SCHED configurations, since checks related to RT bandwidth are not performed at all in these cases. Make moving RT tasks between CPU controller groups viable by removing special case check for RT (and DEADLINE) tasks. Signed-off-by:
Juri Lelli <juri.lelli@redhat.com> Signed-off-by:
Michal Koutný <mkoutny@suse.com> Reviewed-by:
Daniel Bristot de Oliveira <bristot@redhat.com> Acked-by:
Tejun Heo <tj@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: lizefan@huawei.com Cc: longman@redhat.com Cc: luca.abeni@santannapisa.it Cc: rostedt@goodmis.org Link: https://lkml.kernel.org/r/20190719063455.27328-1-juri.lelli@redhat.comSigned-off-by:
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