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From: Borislav Petkov <bp@suse.de>
To: Tyler Baicar <tbaicar@codeaurora.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>,
	Huang Ying <ying.huang@intel.com>,
	Chen Gong <gong.chen@linux.intel.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Will Deacon <will.deacon@arm.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>
Subject: Re: [ghes_copy_tofrom_phys] BUG: sleeping function called from invalid context at mm/page_alloc.c:4150
Date: Mon, 30 Oct 2017 15:06:04 +0100	[thread overview]
Message-ID: <20171030140553.akse6wcfzmuhldad@pd.tnic> (raw)
In-Reply-To: <2d40fa2f-0b88-a466-fc67-26653f5f72e8@codeaurora.org>

On Mon, Oct 30, 2017 at 10:01:52AM -0400, Tyler Baicar wrote:
> This is not as important for polling sources as it is for the
> interrupt sources since polling sources are regularly checked and
> shouldn't be used for fatal error scenarios. For interrupt driven
> sources, there could already be a fatal error pending, so we should
> handle it immediately.

Whatever it is, you can't call it there as it could deadlock. You need
to think about doing that differently. If you can't come up with a
solution quickly, it should be reverted and then you can try again
later.

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
-- 

  reply	other threads:[~2017-10-30 14:06 UTC|newest]

Thread overview: 101+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-23 11:03 Linux 4.14-rc6 Linus Torvalds
2017-10-29 22:51 ` Fengguang Wu
2017-10-29 23:02   ` [perf_event_ctx_lock_nested] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:97 Fengguang Wu
2017-10-30  8:42     ` Peter Zijlstra
2017-10-30  8:52       ` Fengguang Wu
2017-10-29 23:10   ` [o2nm_depend_item] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:52 Fengguang Wu
2017-10-29 23:23     ` Fengguang Wu
2017-10-30  1:48       ` Eric Ren
2017-10-30  1:48         ` [Ocfs2-devel] " Eric Ren
2017-10-30  2:04       ` piaojun
2017-10-30  2:04         ` [Ocfs2-devel] " piaojun
2017-10-29 23:18   ` [ghes_copy_tofrom_phys] BUG: sleeping function called from invalid context at mm/page_alloc.c:4150 Fengguang Wu
2017-10-30 11:05     ` Borislav Petkov
2017-10-30 14:01       ` Tyler Baicar
2017-10-30 14:06         ` Borislav Petkov [this message]
2017-10-30 14:17           ` Tyler Baicar
2017-10-30 14:56             ` Borislav Petkov
2017-10-30 17:20       ` Linus Torvalds
2017-10-30 17:42         ` Borislav Petkov
2017-10-30 17:46         ` Linus Torvalds
2017-10-30 17:49           ` Will Deacon
2017-10-30 18:00             ` Linus Torvalds
2017-10-30 20:14           ` Tyler Baicar
2017-10-31 10:38             ` Will Deacon
2017-10-31 12:29               ` Mark Rutland
     [not found]             ` <20171106224635.qopgsszwxzuitkpf@wfg-t540p.sh.intel.com>
2017-11-06 22:57               ` [v4.14-rc8 ghes_copy_tofrom_phys] BUG: sleeping function called from invalid context at lib/ioremap.c:165 Linus Torvalds
2017-11-06 23:20                 ` Fengguang Wu
2017-11-06 23:02               ` Borislav Petkov
2017-11-06 23:04                 ` Rafael J. Wysocki
2017-11-07 13:39                 ` Fengguang Wu
     [not found]               ` <20171106225354.6ucl4f4ipsjlntzl@wfg-t540p.sh.intel.com>
2017-11-06 23:12                 ` [ata_scsi_offline_dev] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:238 Linus Torvalds
2017-11-07  0:12                   ` Tejun Heo
2017-11-07  3:34                   ` Martin K. Petersen
2017-11-07  6:55                   ` Hannes Reinecke
2017-10-29 23:37   ` [pgtable_trans_huge_withdraw] BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 Fengguang Wu
2017-10-30  9:19     ` Kirill A. Shutemov
2017-10-30  9:19       ` Kirill A. Shutemov
2017-10-30  9:28       ` Fengguang Wu
2017-10-30  9:28         ` Fengguang Wu
2017-10-30 11:27         ` Kirill A. Shutemov
2017-10-30 11:27           ` Kirill A. Shutemov
2017-10-30 11:58     ` Kirill A. Shutemov
2017-10-30 11:58       ` Kirill A. Shutemov
2017-10-30 12:40       ` Zi Yan
2017-10-30 13:24         ` Kirill A. Shutemov
2017-10-30 13:24           ` Kirill A. Shutemov
2017-10-29 23:48   ` [run_timer_softirq] BUG: unable to handle kernel paging request at 0000000000010007 Fengguang Wu
2017-10-30 19:29     ` Linus Torvalds
2017-10-30 20:37       ` Fengguang Wu
2017-11-09  5:19       ` Fengguang Wu
2017-11-10 20:08         ` Linus Torvalds
2017-11-10 21:29           ` Thomas Gleixner
2017-11-11 15:35             ` Fengguang Wu
2017-10-30  6:27   ` Linux 4.14-rc6: WARNING: CPU: 9 PID: 5377 at arch/x86/events/intel/core.c:2228 intel_pmu_handle_irq+0x4a8/0x4c0 Fengguang Wu
2017-10-30 10:02     ` Peter Zijlstra
2017-10-30 22:49       ` Fengguang Wu
2017-10-31 14:57         ` Peter Zijlstra
2017-10-30  6:44   ` [migration_cpu_stop] WARNING: CPU: 0 PID: 11 at arch/x86/kernel/smp.c:128 native_smp_send_reschedule+0x69/0x9e Fengguang Wu
2017-10-30  7:00   ` [haswell_crtc_enable] WARNING: CPU: 3 PID: 109 at drivers/gpu/drm/drm_vblank.c:1066 drm_wait_one_vblank+0x18f/0x1a0 [drm] Fengguang Wu
2017-10-30  7:00     ` Fengguang Wu
2017-10-30 19:10     ` Linus Torvalds
2017-10-30 19:10       ` Linus Torvalds
2017-10-30 20:03       ` [Intel-gfx] " Rodrigo Vivi
2017-10-30 23:17         ` Fengguang Wu
2017-10-30 23:17           ` Fengguang Wu
2017-10-30 20:18       ` Fengguang Wu
2017-10-30 20:18         ` Fengguang Wu
2017-10-30  7:20   ` [btrfs] WARNING: CPU: 0 PID: 6379 at fs/direct-io.c:293 dio_complete+0x1d4/0x220 Fengguang Wu
2017-10-30  7:44     ` Eryu Guan
2017-10-31  0:10       ` Fengguang Wu
2017-10-31  6:54         ` Eryu Guan
2017-10-31  7:10           ` Fengguang Wu
2017-11-06  1:13           ` Eric Biggers
2017-11-13 19:13             ` Eric Biggers
2017-11-13 19:16               ` Jens Axboe
2017-11-13 19:21                 ` Linus Torvalds
2017-11-13 21:56                   ` Darrick J. Wong
2017-11-13 22:01                     ` Linus Torvalds
2017-11-14 17:17                       ` Theodore Ts'o
2017-10-31 15:13       ` Filipe Manana
2017-10-30  7:35   ` [locking/paravirt] static_key_disable_cpuslocked(): static key 'virt_spin_lock_key+0x0/0x20' used before call to jump_label_init() Fengguang Wu
2017-10-30  7:35   ` Fengguang Wu
2017-10-30  7:35     ` Fengguang Wu
2017-10-30  7:47     ` Juergen Gross
2017-10-30  7:47       ` Juergen Gross
2017-10-30  8:38       ` Fengguang Wu
2017-10-30  8:38       ` Fengguang Wu
2017-10-30  8:38         ` Fengguang Wu
2017-10-30  9:56         ` Fengguang Wu
2017-10-30  9:56           ` Fengguang Wu
2017-10-30  9:56         ` Fengguang Wu
2017-10-30  7:47     ` Juergen Gross
2017-10-30  8:43     ` Dou Liyang
2017-10-30  8:43     ` Dou Liyang
2017-10-30  8:43     ` Dou Liyang
2017-10-30  7:40   ` [pmem_attach_disk] WARNING: CPU: 46 PID: 518 at kernel/memremap.c:363 devm_memremap_pages+0x350/0x4b0 Fengguang Wu
2017-10-30 15:59     ` Dan Williams
2017-10-31  0:00       ` Fengguang Wu
2017-10-31  0:24         ` Dan Williams
2017-10-31  7:08           ` Fengguang Wu
2017-11-12  0:15           ` Theodore Ts'o

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