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[2620:137:e000::1:20]) by mx.google.com with ESMTP id n18-20020a170902e55200b001586190b7c1si18490313plf.528.2022.07.13.01.05.04; Wed, 13 Jul 2022 01:05:18 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=c5FAHhmy; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234713AbiGMHkN (ORCPT + 99 others); Wed, 13 Jul 2022 03:40:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36380 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234719AbiGMHkL (ORCPT ); Wed, 13 Jul 2022 03:40:11 -0400 Received: from mail-lf1-x129.google.com (mail-lf1-x129.google.com [IPv6:2a00:1450:4864:20::129]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 28399E4F3B for ; Wed, 13 Jul 2022 00:40:08 -0700 (PDT) Received: by mail-lf1-x129.google.com with SMTP id bu42so17783914lfb.0 for ; Wed, 13 Jul 2022 00:40:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=VI5KbKkHr71o87v7m/QN1baECd4kMlp4wUo4lndt4PY=; b=c5FAHhmyMfRlrsjTSOylh6LHgqsvT63TWt6BjwuX1SQ55wilxRmYeBmvki1Q1orU4T 0m8JYgj3Auc0nHKDULQ4IUkjBg9Yw9bkHmCIi/OAYB9tYaoFxzWrb0tz8FwKDOPPqQ8Y TRj1A1Nwz85j7B1u9sv+2/j0JwsWdDWGdVpd8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=VI5KbKkHr71o87v7m/QN1baECd4kMlp4wUo4lndt4PY=; b=m/4W88uRULFrx8KC4PAzCC3d5zdFJ9uDJIjrg0W/sPOpDyR2dyRzz086FdxD4fNZTI Yj6ZrczhcwbfuyrjsMtmNAa7C1lJdDdMe6zJAzeBn/YHgq4BoM965DPOAHDoeC0fHI1w xw6KZMlC4efQiTCzTwKieumL/6P0m/YxPcQnbGzbjxfvaJ+fPUWvQF7rpBNRB5qtacwV OEF65Rj8c09tO9iLN2DE0YcQmPzqQjwwYYh4wetcNbSA8LHvBvHTCCmTdDg+y/j1o3aT PmcVdAp0UwMvAe5anYLitoY7zuQuyrTBK/Ii+gc8qhEFYiRA9PMFAga6tUQsXXlCQfA9 JgYA== X-Gm-Message-State: AJIora8HdFjV6MIdsVXMnZBqWV4bf2Jcl8OusV5M2Npz+2bYAj7luyvX Ir7cherp6UgKc2r7Q1x/d8DMqy0hwQBOGMi6IaPk5A== X-Received: by 2002:a05:6512:2610:b0:47f:74dc:3205 with SMTP id bt16-20020a056512261000b0047f74dc3205mr1109041lfb.429.1657698006204; Wed, 13 Jul 2022 00:40:06 -0700 (PDT) MIME-Version: 1.0 References: <87wncknkfe.fsf@suse.de> In-Reply-To: <87wncknkfe.fsf@suse.de> From: Dario Binacchi Date: Wed, 13 Jul 2022 09:39:54 +0200 Message-ID: Subject: Re: [LTP] [can] c4e54b063f: BUG:sleeping_function_called_from_invalid_context_at_kernel/workqueue.c To: rpalethorpe@suse.de Cc: kernel test robot , lkp@intel.com, lkp@lists.01.org, Jeroen Hofstee , LKML , linux-can@vger.kernel.org, Linux Memory Management List , Marc Kleine-Budde , ltp@lists.linux.it Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Mon, Jul 11, 2022 at 10:05 AM Richard Palethorpe w= rote: > > Hello, > > kernel test robot writes: > > > Greeting, > > > > FYI, we noticed the following commit (built with gcc-11): > > > > commit: c4e54b063f42f20a6b3ad1ffa61c574e631e0216 ("can: slcan: use CAN = network device driver API") > > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git > > master > > I guess the problem is this may sleep with soft irqs disabled. > > static int slc_close(struct net_device *dev) > { > struct slcan *sl =3D netdev_priv(dev); > int err; > > spin_lock_bh(&sl->lock); <-- takes lock > if (sl->tty) { > if (sl->can.bittiming.bitrate && > sl->can.bittiming.bitrate !=3D CAN_BITRATE_UNKNOWN) { > spin_unlock_bh(&sl->lock); > err =3D slcan_transmit_cmd(sl, "C\r"); > spin_lock_bh(&sl->lock); > if (err) > netdev_warn(dev, > "failed to send close command= 'C\\r'\n"); > } > > /* TTY discipline is running. */ > clear_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags); > } > netif_stop_queue(dev); > close_candev(dev); <-- calls cancel_delayed_work_sync() > I would try (since I am unable to replicate the test) to move the spin_unlock_bh() before calling close_candev(). Can the patch be sent now or do I have to wait until the code is in mainlin= e? Thanks and regards, Dario > > > > > > in testcase: ltp > > version: ltp-x86_64-14c1f76-1_20220625 > > with following parameters: > > > > test: pty > > ucode: 0x21 > > > > test-description: The LTP testsuite contains a collection of tools for = testing the Linux kernel and related features. > > test-url: http://linux-test-project.github.io/ > > > > > > on test machine: 4 threads 1 sockets Intel(R) Core(TM) i3-3220 CPU @ 3.= 30GHz with 8G memory > > > > caused below changes (please refer to attached dmesg/kmsg for entire lo= g/backtrace): > > > > > > > > If you fix the issue, kindly add following tag > > Reported-by: kernel test robot > > > > > > [ 164.229702][ T3796] BUG: sleeping function called from invalid conte= xt at kernel/workqueue.c:3010 > > [ 164.229710][ T3796] in_atomic(): 1, irqs_disabled(): 0, non_block: 0= , pid: 3796, name: pty03 > > [ 164.229715][ T3796] preempt_count: 201, expected: 0 > > [ 164.229719][ T3796] CPU: 1 PID: 3796 Comm: pty03 Tainted: G S = 5.19.0-rc3-00630-gc4e54b063f42 #1 > > [ 164.229724][ T3796] Hardware name: Hewlett-Packard p6-1451cx/2ADA, B= IOS 8.15 02/05/2013 > > [ 164.229727][ T3796] Call Trace: > > [ 164.229729][ T3796] > > [ 164.229732][ T3796] dump_stack_lvl (lib/dump_stack.c:107 (discriminat= or 1)) > > [ 164.229742][ T3796] __might_resched.cold (kernel/sched/core.c:9822) > > [ 164.229749][ T3796] start_flush_work+0x2a/0x680 > > [ 164.229756][ T3796] __flush_work+0xa1/0x140 > > [ 164.229761][ T3796] ? start_flush_work+0x680/0x680 > > [ 164.229766][ T3796] ? out_of_line_wait_on_bit_timeout (kernel/sched/c= ompletion.c:100) > > [ 164.229774][ T3796] ? detach_if_pending (kernel/time/timer.c:1252) > > [ 164.229779][ T3796] ? try_to_grab_pending+0x23/0x480 > > [ 164.229784][ T3796] __cancel_work_timer (kernel/workqueue.c:3162) > > [ 164.229789][ T3796] ? start_flush_work+0xac/0x680 > > [ 164.229794][ T3796] ? try_to_grab_pending+0x480/0x480 > > [ 164.229799][ T3796] ? flush_work (kernel/workqueue.c:3074 kernel/work= queue.c:3096) > > [ 164.229803][ T3796] ? flush_rcu_work (kernel/workqueue.c:3095) > > [ 164.229807][ T3796] ? synchronize_rcu_expedited (kernel/rcu/tree.c:38= 35) > > [ 164.229813][ T3796] ? _raw_spin_lock_bh (arch/x86/include/asm/atomic.= h:202 include/linux/atomic/atomic-instrumented.h:543 include/asm-generic/qs= pinlock.h:111 include/linux/spinlock.h:185 include/linux/spinlock_api_smp.h= :127 kernel/locking/spinlock.c:178) > > [ 164.229817][ T3796] ? _raw_spin_lock (kernel/locking/spinlock.c:177) > > [ 164.229824][ T3796] close_candev (drivers/net/can/dev/dev.c:389) can_= dev > > [ 164.229835][ T3796] slc_close (drivers/net/can/slcan.c:398) slcan > > [ 164.229842][ T3796] slcan_close (drivers/net/can/slcan.c:657) slcan > > [ 164.229849][ T3796] tty_ldisc_hangup (drivers/tty/tty_ldisc.c:282 dri= vers/tty/tty_ldisc.c:701) > > [ 164.229855][ T3796] ? fasync_remove_entry (fs/fcntl.c:868) > > [ 164.229862][ T3796] __tty_hangup+0x410/0x8c0 > > [ 164.229868][ T3796] tty_ioctl (drivers/tty/tty_io.c:2719) > > [ 164.229873][ T3796] ? tty_release (drivers/tty/tty_io.c:2655) > > [ 164.229877][ T3796] ? __switch_to (arch/x86/kernel/process.h:38 arch/= x86/kernel/process_64.c:627) > > [ 164.229883][ T3796] ? __schedule (kernel/sched/core.c:6340) > > [ 164.229888][ T3796] ? io_schedule_timeout (kernel/sched/core.c:6340) > > [ 164.229894][ T3796] ? __fget_files (arch/x86/include/asm/atomic64_64.= h:22 include/linux/atomic/atomic-arch-fallback.h:2363 include/linux/atomic/= atomic-arch-fallback.h:2388 include/linux/atomic/atomic-arch-fallback.h:240= 4 include/linux/atomic/atomic-long.h:497 include/linux/atomic/atomic-instru= mented.h:1854 fs/file.c:882 fs/file.c:913) > > [ 164.229901][ T3796] __x64_sys_ioctl (fs/ioctl.c:52 fs/ioctl.c:870 fs/= ioctl.c:856 fs/ioctl.c:856) > > [ 164.229907][ T3796] do_syscall_64 (arch/x86/entry/common.c:50 arch/x8= 6/entry/common.c:80) > > [ 164.229913][ T3796] entry_SYSCALL_64_after_hwframe (arch/x86/entry/en= try_64.S:115) > > [ 164.229918][ T3796] RIP: 0033:0x7fd1923fbcc7 > > [ 164.229923][ T3796] Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 26 0= 0 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 0= 0 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 > > All code > > =3D=3D=3D=3D=3D=3D=3D=3D > > 0: 00 00 add %al,(%rax) > > 2: 00 48 8b add %cl,-0x75(%rax) > > 5: 05 c9 91 0c 00 add $0xc91c9,%eax > > a: 64 c7 00 26 00 00 00 movl $0x26,%fs:(%rax) > > 11: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax > > 18: c3 retq > > 19: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) > > 20: 00 00 00 > > 23: b8 10 00 00 00 mov $0x10,%eax > > 28: 0f 05 syscall > > 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax = <-- trapping instruction > > 30: 73 01 jae 0x33 > > 32: c3 retq > > 33: 48 8b 0d 99 91 0c 00 mov 0xc9199(%rip),%rcx # 0xc91d= 3 > > 3a: f7 d8 neg %eax > > 3c: 64 89 01 mov %eax,%fs:(%rcx) > > 3f: 48 rex.W > > > > Code starting with the faulting instruction > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax > > 6: 73 01 jae 0x9 > > 8: c3 retq > > 9: 48 8b 0d 99 91 0c 00 mov 0xc9199(%rip),%rcx # 0xc91a= 9 > > 10: f7 d8 neg %eax > > 12: 64 89 01 mov %eax,%fs:(%rcx) > > 15: 48 rex.W > > [ 164.229927][ T3796] RSP: 002b:00007fff0f3bfc88 EFLAGS: 00000246 ORIG= _RAX: 0000000000000010 > > [ 164.229934][ T3796] RAX: ffffffffffffffda RBX: 000055ed576c7700 RCX:= 00007fd1923fbcc7 > > [ 164.229938][ T3796] RDX: 0000000000000000 RSI: 0000000000005437 RDI:= 000000000000000d > > [ 164.229940][ T3796] RBP: 000055ed576c7b20 R08: 000000000003e5d8 R09:= 0000000000000004 > > [ 164.229943][ T3796] R10: 00007fff0f3cd170 R11: 0000000000000246 R12:= 000000000000000d > > [ 164.229946][ T3796] R13: 0000000000000006 R14: 000055ed576c76a0 R15:= 0000000000000004 > > [ 164.229951][ T3796] > > [ 165.244520][ T3796] BUG: sleeping function called from invalid conte= xt at kernel/workqueue.c:3010 > > [ 165.244528][ T3796] in_atomic(): 1, irqs_disabled(): 0, non_block: 0= , pid: 3796, name: pty03 > > [ 165.244532][ T3796] preempt_count: 201, expected: 0 > > [ 165.244537][ T3796] CPU: 0 PID: 3796 Comm: pty03 Tainted: G S W= 5.19.0-rc3-00630-gc4e54b063f42 #1 > > [ 165.244543][ T3796] Hardware name: Hewlett-Packard p6-1451cx/2ADA, B= IOS 8.15 02/05/2013 > > [ 165.244546][ T3796] Call Trace: > > [ 165.244548][ T3796] > > [ 165.244551][ T3796] dump_stack_lvl (lib/dump_stack.c:107 (discriminat= or 1)) > > [ 165.244562][ T3796] __might_resched.cold (kernel/sched/core.c:9822) > > [ 165.244569][ T3796] start_flush_work+0x2a/0x680 > > [ 165.244576][ T3796] __flush_work+0xa1/0x140 > > [ 165.244582][ T3796] ? start_flush_work+0x680/0x680 > > [ 165.244587][ T3796] ? out_of_line_wait_on_bit_timeout (kernel/sched/c= ompletion.c:100) > > [ 165.244594][ T3796] ? __x64_sys_ioctl (fs/ioctl.c:52 fs/ioctl.c:870 f= s/ioctl.c:856 fs/ioctl.c:856) > > [ 165.244601][ T3796] ? detach_if_pending (kernel/time/timer.c:1252) > > [ 165.244607][ T3796] ? try_to_grab_pending+0x23/0x480 > > [ 165.244612][ T3796] __cancel_work_timer (kernel/workqueue.c:3162) > > [ 165.244617][ T3796] ? start_flush_work+0xac/0x680 > > [ 165.244622][ T3796] ? try_to_grab_pending+0x480/0x480 > > [ 165.244627][ T3796] ? flush_work (kernel/workqueue.c:3074 kernel/work= queue.c:3096) > > [ 165.244632][ T3796] ? flush_rcu_work (kernel/workqueue.c:3095) > > [ 165.244636][ T3796] ? synchronize_rcu_expedited (kernel/rcu/tree.c:38= 35) > > [ 165.244641][ T3796] ? _raw_spin_lock_bh (arch/x86/include/asm/atomic.= h:202 include/linux/atomic/atomic-instrumented.h:543 include/asm-generic/qs= pinlock.h:111 include/linux/spinlock.h:185 include/linux/spinlock_api_smp.h= :127 kernel/locking/spinlock.c:178) > > [ 165.244647][ T3796] ? _raw_spin_lock (kernel/locking/spinlock.c:177) > > [ 165.244653][ T3796] close_candev (drivers/net/can/dev/dev.c:389) can_= dev > > [ 165.244665][ T3796] slc_close (drivers/net/can/slcan.c:398) slcan > > [ 165.244672][ T3796] slcan_close (drivers/net/can/slcan.c:657) slcan > > [ 165.244679][ T3796] tty_ldisc_hangup (drivers/tty/tty_ldisc.c:282 dri= vers/tty/tty_ldisc.c:701) > > [ 165.244685][ T3796] ? fasync_remove_entry (fs/fcntl.c:868) > > [ 165.244691][ T3796] __tty_hangup+0x410/0x8c0 > > [ 165.244696][ T3796] tty_ioctl (drivers/tty/tty_io.c:2719) > > [ 165.244701][ T3796] ? tty_release (drivers/tty/tty_io.c:2655) > > [ 165.244705][ T3796] ? __switch_to (arch/x86/kernel/process.h:38 arch/= x86/kernel/process_64.c:627) > > [ 165.244711][ T3796] ? __schedule (kernel/sched/core.c:6340) > > [ 165.244716][ T3796] ? io_schedule_timeout (kernel/sched/core.c:6340) > > [ 165.244721][ T3796] ? __fget_files (arch/x86/include/asm/atomic64_64.= h:22 include/linux/atomic/atomic-arch-fallback.h:2363 include/linux/atomic/= atomic-arch-fallback.h:2388 include/linux/atomic/atomic-arch-fallback.h:240= 4 include/linux/atomic/atomic-long.h:497 include/linux/atomic/atomic-instru= mented.h:1854 fs/file.c:882 fs/file.c:913) > > [ 165.244727][ T3796] __x64_sys_ioctl (fs/ioctl.c:52 fs/ioctl.c:870 fs/= ioctl.c:856 fs/ioctl.c:856) > > [ 165.244733][ T3796] do_syscall_64 (arch/x86/entry/common.c:50 arch/x8= 6/entry/common.c:80) > > [ 165.244739][ T3796] entry_SYSCALL_64_after_hwframe (arch/x86/entry/en= try_64.S:115) > > [ 165.244744][ T3796] RIP: 0033:0x7fd1923fbcc7 > > [ 165.244749][ T3796] Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 26 0= 0 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 0= 0 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 > > All code > > =3D=3D=3D=3D=3D=3D=3D=3D > > 0: 00 00 add %al,(%rax) > > 2: 00 48 8b add %cl,-0x75(%rax) > > 5: 05 c9 91 0c 00 add $0xc91c9,%eax > > a: 64 c7 00 26 00 00 00 movl $0x26,%fs:(%rax) > > 11: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax > > 18: c3 retq > > 19: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) > > 20: 00 00 00 > > 23: b8 10 00 00 00 mov $0x10,%eax > > 28: 0f 05 syscall > > 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax = <-- trapping instruction > > 30: 73 01 jae 0x33 > > 32: c3 retq > > 33: 48 8b 0d 99 91 0c 00 mov 0xc9199(%rip),%rcx # 0xc91d= 3 > > 3a: f7 d8 neg %eax > > 3c: 64 89 01 mov %eax,%fs:(%rcx) > > 3f: 48 rex.W > > > > Code starting with the faulting instruction > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax > > 6: 73 01 jae 0x9 > > 8: c3 retq > > 9: 48 8b 0d 99 91 0c 00 mov 0xc9199(%rip),%rcx # 0xc91a= 9 > > 10: f7 d8 neg %eax > > 12: 64 89 01 mov %eax,%fs:(%rcx) > > 15: 48 rex.W > > [ 165.244753][ T3796] RSP: 002b:00007fff0f3bfc88 EFLAGS: 00000246 ORIG= _RAX: 0000000000000010 > > [ 165.244759][ T3796] RAX: ffffffffffffffda RBX: 000055ed576c7700 RCX:= 00007fd1923fbcc7 > > [ 165.244762][ T3796] RDX: 0000000000000000 RSI: 0000000000005437 RDI:= 000000000000000d > > [ 165.244765][ T3796] RBP: 000055ed576c7b20 R08: 000000000003edc6 R09:= 0000000000000004 > > [ 165.244768][ T3796] R10: 00007fff0f3cd170 R11: 0000000000000246 R12:= 000000000000000d > > [ 165.244771][ T3796] R13: 0000000000000006 R14: 000055ed576c76a0 R15:= 0000000000000004 > > [ 165.244775][ T3796] > > [ 166.256559][ T3796] BUG: sleeping function called from invalid conte= xt at kernel/workqueue.c:3010 > > [ 166.256569][ T3796] in_atomic(): 1, irqs_disabled(): 0, non_block: 0= , pid: 3796, name: pty03 > > [ 166.256574][ T3796] preempt_count: 201, expected: 0 > > [ 166.256578][ T3796] CPU: 0 PID: 3796 Comm: pty03 Tainted: G S W= 5.19.0-rc3-00630-gc4e54b063f42 #1 > > [ 166.256584][ T3796] Hardware name: Hewlett-Packard p6-1451cx/2ADA, B= IOS 8.15 02/05/2013 > > [ 166.256587][ T3796] Call Trace: > > [ 166.256590][ T3796] > > [ 166.256592][ T3796] dump_stack_lvl (lib/dump_stack.c:107 (discriminat= or 1)) > > [ 166.256602][ T3796] __might_resched.cold (kernel/sched/core.c:9822) > > [ 166.256609][ T3796] start_flush_work+0x2a/0x680 > > [ 166.256617][ T3796] __flush_work+0xa1/0x140 > > [ 166.256622][ T3796] ? start_flush_work+0x680/0x680 > > [ 166.256628][ T3796] ? out_of_line_wait_on_bit_timeout (kernel/sched/c= ompletion.c:100) > > [ 166.256634][ T3796] ? __x64_sys_ioctl (fs/ioctl.c:52 fs/ioctl.c:870 f= s/ioctl.c:856 fs/ioctl.c:856) > > [ 166.256642][ T3796] ? detach_if_pending (kernel/time/timer.c:1252) > > [ 166.256647][ T3796] ? try_to_grab_pending+0x23/0x480 > > [ 166.256652][ T3796] __cancel_work_timer (kernel/workqueue.c:3162) > > [ 166.256657][ T3796] ? start_flush_work+0xac/0x680 > > [ 166.256662][ T3796] ? try_to_grab_pending+0x480/0x480 > > [ 166.256668][ T3796] ? flush_work (kernel/workqueue.c:3074 kernel/work= queue.c:3096) > > [ 166.256672][ T3796] ? flush_rcu_work (kernel/workqueue.c:3095) > > [ 166.256677][ T3796] ? synchronize_rcu_expedited (kernel/rcu/tree.c:38= 35) > > [ 166.256683][ T3796] ? _raw_spin_lock_bh (arch/x86/include/asm/atomic.= h:202 include/linux/atomic/atomic-instrumented.h:543 include/asm-generic/qs= pinlock.h:111 include/linux/spinlock.h:185 include/linux/spinlock_api_smp.h= :127 kernel/locking/spinlock.c:178) > > [ 166.256687][ T3796] ? _raw_spin_lock (kernel/locking/spinlock.c:177) > > [ 166.256694][ T3796] close_candev (drivers/net/can/dev/dev.c:389) can_= dev > > [ 166.256707][ T3796] slc_close (drivers/net/can/slcan.c:398) slcan > > [ 166.256714][ T3796] slcan_close (drivers/net/can/slcan.c:657) slcan > > [ 166.256721][ T3796] tty_ldisc_hangup (drivers/tty/tty_ldisc.c:282 dri= vers/tty/tty_ldisc.c:701) > > [ 166.256728][ T3796] ? fasync_remove_entry (fs/fcntl.c:868) > > [ 166.256734][ T3796] __tty_hangup+0x410/0x8c0 > > [ 166.256741][ T3796] tty_ioctl (drivers/tty/tty_io.c:2719) > > [ 166.256746][ T3796] ? tty_release (drivers/tty/tty_io.c:2655) > > [ 166.256751][ T3796] ? __switch_to (arch/x86/kernel/process.h:38 arch/= x86/kernel/process_64.c:627) > > [ 166.256756][ T3796] ? __schedule (kernel/sched/core.c:6340) > > [ 166.256761][ T3796] ? io_schedule_timeout (kernel/sched/core.c:6340) > > [ 166.256767][ T3796] ? __fget_files (arch/x86/include/asm/atomic64_64.= h:22 include/linux/atomic/atomic-arch-fallback.h:2363 include/linux/atomic/= atomic-arch-fallback.h:2388 include/linux/atomic/atomic-arch-fallback.h:240= 4 include/linux/atomic/atomic-long.h:497 include/linux/atomic/atomic-instru= mented.h:1854 fs/file.c:882 fs/file.c:913) > > [ 166.256773][ T3796] __x64_sys_ioctl (fs/ioctl.c:52 fs/ioctl.c:870 fs/= ioctl.c:856 fs/ioctl.c:856) > > [ 166.256780][ T3796] do_syscall_64 (arch/x86/entry/common.c:50 arch/x8= 6/entry/common.c:80) > > [ 166.256786][ T3796] entry_SYSCALL_64_after_hwframe (arch/x86/entry/en= try_64.S:115) > > [ 166.256791][ T3796] RIP: 0033:0x7fd1923fbcc7 > > [ 166.256797][ T3796] Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 26 0= 0 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 0= 0 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 > > All code > > =3D=3D=3D=3D=3D=3D=3D=3D > > 0: 00 00 add %al,(%rax) > > 2: 00 48 8b add %cl,-0x75(%rax) > > 5: 05 c9 91 0c 00 add $0xc91c9,%eax > > a: 64 c7 00 26 00 00 00 movl $0x26,%fs:(%rax) > > 11: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax > > 18: c3 retq > > 19: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) > > 20: 00 00 00 > > 23: b8 10 00 00 00 mov $0x10,%eax > > 28: 0f 05 syscall > > 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax = <-- trapping instruction > > 30: 73 01 jae 0x33 > > 32: c3 retq > > 33: 48 8b 0d 99 91 0c 00 mov 0xc9199(%rip),%rcx # 0xc91d= 3 > > 3a: f7 d8 neg %eax > > 3c: 64 89 01 mov %eax,%fs:(%rcx) > > 3f: 48 rex.W > > > > Code starting with the faulting instruction > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax > > 6: 73 01 jae 0x9 > > 8: c3 retq > > 9: 48 8b 0d 99 91 0c 00 mov 0xc9199(%rip),%rcx # 0xc91a= 9 > > 10: f7 d8 neg %eax > > 12: 64 89 01 mov %eax,%fs:(%rcx) > > 15: 48 rex.W > > [ 166.256802][ T3796] RSP: 002b:00007fff0f3bfc88 EFLAGS: 00000246 ORIG= _RAX: 0000000000000010 > > [ 166.256809][ T3796] RAX: ffffffffffffffda RBX: 000055ed576c7700 RCX:= 00007fd1923fbcc7 > > [ 166.256813][ T3796] RDX: 0000000000000000 RSI: 0000000000005437 RDI:= 000000000000000d > > [ 166.256815][ T3796] RBP: 000055ed576c7b20 R08: 000000000003f5ac R09:= 0000000000000004 > > [ 166.256818][ T3796] R10: 00007fff0f3cd170 R11: 0000000000000246 R12:= 000000000000000d > > [ 166.256822][ T3796] R13: 0000000000000006 R14: 000055ed576c76a0 R15:= 0000000000000004 > > [ 166.256827][ T3796] > > [ 167.261649][ T3796] BUG: sleeping function called from invalid conte= xt at kernel/workqueue.c:3010 > > [ 167.261657][ T3796] in_atomic(): 1, irqs_disabled(): 0, non_block: 0= , pid: 3796, name: pty03 > > [ 167.261662][ T3796] preempt_count: 201, expected: 0 > > [ 167.261666][ T3796] CPU: 2 PID: 3796 Comm: pty03 Tainted: G S W= 5.19.0-rc3-00630-gc4e54b063f42 #1 > > [ 167.261672][ T3796] Hardware name: Hewlett-Packard p6-1451cx/2ADA, B= IOS 8.15 02/05/2013 > > [ 167.261675][ T3796] Call Trace: > > [ 167.261677][ T3796] > > [ 167.261680][ T3796] dump_stack_lvl (lib/dump_stack.c:107 (discriminat= or 1)) > > [ 167.261690][ T3796] __might_resched.cold (kernel/sched/core.c:9822) > > [ 167.261697][ T3796] start_flush_work+0x2a/0x680 > > [ 167.261705][ T3796] __flush_work+0xa1/0x140 > > [ 167.261711][ T3796] ? start_flush_work+0x680/0x680 > > [ 167.261716][ T3796] ? out_of_line_wait_on_bit_timeout (kernel/sched/c= ompletion.c:100) > > [ 167.261724][ T3796] ? __schedule (kernel/sched/core.c:6340) > > [ 167.261729][ T3796] ? detach_if_pending (kernel/time/timer.c:1252) > > [ 167.261735][ T3796] ? try_to_grab_pending+0x23/0x480 > > [ 167.261740][ T3796] __cancel_work_timer (kernel/workqueue.c:3162) > > [ 167.261745][ T3796] ? start_flush_work+0xac/0x680 > > [ 167.261750][ T3796] ? try_to_grab_pending+0x480/0x480 > > [ 167.261756][ T3796] ? flush_work (kernel/workqueue.c:3074 kernel/work= queue.c:3096) > > [ 167.261760][ T3796] ? flush_rcu_work (kernel/workqueue.c:3095) > > [ 167.261765][ T3796] ? synchronize_rcu_expedited (kernel/rcu/tree.c:38= 35) > > [ 167.261770][ T3796] ? _raw_spin_lock_bh (arch/x86/include/asm/atomic.= h:202 include/linux/atomic/atomic-instrumented.h:543 include/asm-generic/qs= pinlock.h:111 include/linux/spinlock.h:185 include/linux/spinlock_api_smp.h= :127 kernel/locking/spinlock.c:178) > > [ 167.261776][ T3796] ? _raw_spin_lock (kernel/locking/spinlock.c:177) > > [ 167.261782][ T3796] close_candev (drivers/net/can/dev/dev.c:389) can_= dev > > [ 167.261794][ T3796] slc_close (drivers/net/can/slcan.c:398) slcan > > [ 167.261801][ T3796] slcan_close (drivers/net/can/slcan.c:657) slcan > > [ 167.261809][ T3796] tty_ldisc_hangup (drivers/tty/tty_ldisc.c:282 dri= vers/tty/tty_ldisc.c:701) > > [ 167.261816][ T3796] ? fasync_remove_entry (fs/fcntl.c:868) > > [ 167.261823][ T3796] __tty_hangup+0x410/0x8c0 > > [ 167.261830][ T3796] tty_ioctl (drivers/tty/tty_io.c:2719) > > [ 167.261835][ T3796] ? tty_release (drivers/tty/tty_io.c:2655) > > [ 167.261840][ T3796] ? __switch_to (arch/x86/kernel/process.h:38 arch/= x86/kernel/process_64.c:627) > > [ 167.261846][ T3796] ? __schedule (kernel/sched/core.c:6340) > > [ 167.261852][ T3796] ? io_schedule_timeout (kernel/sched/core.c:6340) > > [ 167.261857][ T3796] ? __fget_files (arch/x86/include/asm/atomic64_64.= h:22 include/linux/atomic/atomic-arch-fallback.h:2363 include/linux/atomic/= atomic-arch-fallback.h:2388 include/linux/atomic/atomic-arch-fallback.h:240= 4 include/linux/atomic/atomic-long.h:497 include/linux/atomic/atomic-instru= mented.h:1854 fs/file.c:882 fs/file.c:913) > > [ 167.261865][ T3796] __x64_sys_ioctl (fs/ioctl.c:52 fs/ioctl.c:870 fs/= ioctl.c:856 fs/ioctl.c:856) > > [ 167.261871][ T3796] do_syscall_64 (arch/x86/entry/common.c:50 arch/x8= 6/entry/common.c:80) > > [ 167.261877][ T3796] entry_SYSCALL_64_after_hwframe (arch/x86/entry/en= try_64.S:115) > > [ 167.261883][ T3796] RIP: 0033:0x7fd1923fbcc7 > > [ 167.261888][ T3796] Code: 00 00 00 48 8b 05 c9 91 0c 00 64 c7 00 26 0= 0 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 0= 0 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 99 91 0c 00 f7 d8 64 89 01 48 > > All code > > =3D=3D=3D=3D=3D=3D=3D=3D > > 0: 00 00 add %al,(%rax) > > 2: 00 48 8b add %cl,-0x75(%rax) > > 5: 05 c9 91 0c 00 add $0xc91c9,%eax > > a: 64 c7 00 26 00 00 00 movl $0x26,%fs:(%rax) > > 11: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax > > 18: c3 retq > > 19: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) > > 20: 00 00 00 > > 23: b8 10 00 00 00 mov $0x10,%eax > > 28: 0f 05 syscall > > 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax = <-- trapping instruction > > 30: 73 01 jae 0x33 > > 32: c3 retq > > 33: 48 8b 0d 99 91 0c 00 mov 0xc9199(%rip),%rcx # 0xc91d= 3 > > 3a: f7 d8 neg %eax > > 3c: 64 89 01 mov %eax,%fs:(%rcx) > > 3f: 48 rex.W > > > > Code starting with the faulting instruction > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax > > 6: 73 01 jae 0x9 > > 8: c3 retq > > 9: 48 8b 0d 99 91 0c 00 mov 0xc9199(%rip),%rcx # 0xc91a= 9 > > 10: f7 d8 neg %eax > > 12: 64 89 01 mov %eax,%fs:(%rcx) > > 15: 48 rex.W > > [ 167.261893][ T3796] RSP: 002b:00007fff0f3bfc88 EFLAGS: 00000246 ORIG= _RAX: 0000000000000010 > > [ 167.261900][ T3796] RAX: ffffffffffffffda RBX: 000055ed576c7700 RCX:= 00007fd1923fbcc7 > > [ 167.261904][ T3796] RDX: 0000000000000000 RSI: 0000000000005437 RDI:= 000000000000000d > > [ 167.261907][ T3796] RBP: 000055ed576c7b20 R08: 000000000003fd86 R09:= 0000000000000004 > > [ 167.261910][ T3796] R10: 00007fff0f3cd170 R11: 0000000000000246 R12:= 000000000000000d > > [ 167.261913][ T3796] R13: 0000000000000006 R14: 000055ed576c76a0 R15:= 0000000000000004 > > [ 167.261918][ T3796] > > [ 167.718896][ T308] Flags: fpu vme de pse = tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi m= mx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmo= n pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulq= dq dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 po= pcnt tsc_deadline_timer xsave avx f16c lahf_lm cpuid_fault epb pti ssbd ibr= s ibpb stibp fsgsbase smep erms xsaveopt dtherm arat pln pts md_clear flush= _l1d > > [ 167.718915][ T308] > > [ 167.718952][ T308] > > [ 167.718961][ T308] > > [ 167.719897][ T308] available filesystems: > > [ 167.719908][ T308] > > [ 167.729228][ T308] 9p autofs bdev bpf btrfs cgroup cgroup2 configfs= cpuset debugfs devpts devtmpfs ext3 ext4 fuse fuseblk fusectl hugetlbfs mq= ueue nfs nfs4 pipefs proc pstore ramfs rpc_pipefs securityfs sockfs sysfs t= mpfs tracefs > > [ 167.729245][ T308] > > [ 167.729281][ T308] > > [ 167.729290][ T308] > > [ 167.731408][ T308] mounted filesystems (/proc/mounts): > > [ 167.731421][ T308] > > [ 167.732603][ T308] rootfs / rootfs rw 0 0 > > [ 167.732616][ T308] > > [ 167.734793][ T308] proc /proc proc rw,nosuid,nodev,noexec,relatime = 0 0 > > [ 167.734805][ T308] > > [ 167.737074][ T308] sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime= 0 0 > > [ 167.737087][ T308] > > [ 167.740630][ T308] devtmpfs /dev devtmpfs rw,nosuid,noexec,size=3D4= 096k,nr_inodes=3D65536,mode=3D755 0 0 > > [ 167.740643][ T308] > > [ 167.743870][ T308] securityfs /sys/kernel/security securityfs rw,no= suid,nodev,noexec,relatime 0 0 > > [ 167.743884][ T308] > > [ 167.745551][ T308] tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0 > > [ 167.745560][ T308] > > [ 167.749122][ T308] devpts /dev/pts devpts rw,nosuid,noexec,relatime= ,gid=3D5,mode=3D620,ptmxmode=3D000 0 0 > > [ 167.749137][ T308] > > [ 167.752335][ T308] tmpfs /run tmpfs rw,nosuid,nodev,size=3D1328156k= ,nr_inodes=3D819200,mode=3D755 0 0 > > [ 167.752350][ T308] > > [ 167.755303][ T308] tmpfs /run/lock tmpfs rw,nosuid,nodev,noexec,rel= atime,size=3D5120k 0 0 > > [ 167.755317][ T308] > > [ 167.759879][ T308] cgroup2 /sys/fs/cgroup cgroup2 rw,nosuid,nodev,n= oexec,relatime,nsdelegate,memory_recursiveprot 0 0 > > [ 167.759893][ T308] > > [ 167.762861][ T308] pstore /sys/fs/pstore pstore rw,nosuid,nodev,noe= xec,relatime 0 0 > > [ 167.762875][ T308] > > [ 167.765829][ T308] bpf /sys/fs/bpf bpf rw,nosuid,nodev,noexec,relat= ime,mode=3D700 0 0 > > [ 167.765844][ T308] > > [ 167.771116][ T308] systemd-1 /proc/sys/fs/binfmt_misc autofs rw,rel= atime,fd=3D30,pgrp=3D1,timeout=3D0,minproto=3D5,maxproto=3D5,direct,pipe_in= o=3D15317 0 0 > > [ 167.771132][ T308] > > [ 167.774045][ T308] hugetlbfs /dev/hugepages hugetlbfs rw,relatime,p= agesize=3D2M 0 0 > > [ 167.774060][ T308] > > [ 167.776802][ T308] mqueue /dev/mqueue mqueue rw,nosuid,nodev,noexec= ,relatime 0 0 > > [ 167.776816][ T308] > > [ 167.778953][ T308] sunrpc /run/rpc_pipefs rpc_pipefs rw,relatime 0 = 0 > > [ 167.778966][ T308] > > [ 167.781419][ T308] debugfs /sys/kernel/debug debugfs rw,nosuid,node= v,noexec,relatime 0 0 > > [ 167.781429][ T308] > > [ 167.783722][ T308] tracefs /sys/kernel/tracing tracefs rw,nosuid,no= dev,noexec,relatime 0 0 > > [ 167.783736][ T308] > > [ 167.786434][ T308] fusectl /sys/fs/fuse/connections fusectl rw,nosu= id,nodev,noexec,relatime 0 0 > > [ 167.786447][ T308] > > [ 167.789106][ T308] configfs /sys/kernel/config configfs rw,nosuid,n= odev,noexec,relatime 0 0 > > [ 167.789117][ T308] > > [ 167.790149][ T308] tmp /tmp tmpfs rw,relatime 0 0 > > [ 167.790157][ T308] > > [ 167.792476][ T308] /dev/sda1 /opt/rootfs btrfs rw,relatime,ssd,spac= e_cache,subvolid=3D5,subvol=3D/ 0 0 > > [ 167.792530][ T308] > > [ 167.792555][ T308] > > [ 167.792560][ T308] > > [ 167.793218][ T308] mounted filesystems (df): > > [ 167.793224][ T308] > > [ 167.795097][ T308] Filesystem Type Size Used Avail Use% M= ounted on > > [ 167.795108][ T308] > > [ 167.797044][ T308] devtmpfs devtmpfs 4.0M 0 4.0M 0% /= dev > > [ 167.797057][ T308] > > [ 167.799451][ T308] tmpfs tmpfs 3.2G 0 3.2G 0% /= dev/shm > > [ 167.799465][ T308] > > [ 167.801444][ T308] tmpfs tmpfs 1.3G 616K 1.3G 1% /= run > > [ 167.801456][ T308] > > [ 167.803965][ T308] tmpfs tmpfs 5.0M 0 5.0M 0% /= run/lock > > [ 167.803977][ T308] > > [ 167.806314][ T308] tmp tmpfs 3.2G 324K 3.2G 1% /= tmp > > [ 167.806327][ T308] > > [ 167.809011][ T308] /dev/sda1 btrfs 500G 32G 468G 7% /= opt/rootfs > > [ 167.809025][ T308] > > > > > > To reproduce: > > > > git clone https://github.com/intel/lkp-tests.git > > cd lkp-tests > > sudo bin/lkp install job.yaml # job file is attached = in this email > > bin/lkp split-job --compatible job.yaml # generate the yaml fil= e for lkp run > > sudo bin/lkp run generated-yaml-file > > > > # if come across any failure that blocks the test, > > # please remove ~/.lkp and /lkp dir to run from a clean state. > > > > > > > > -- > > 0-DAY CI Kernel Test Service > > https://01.org/lkp > > > > > > [2. text/plain; config-5.19.0-rc3-00630-gc4e54b063f42]... > > > > [3. text/plain; job-script]... > > > > [4. application/x-xz; dmesg.xz]... > > > > [5. text/plain; ltp]... > > > > [6. text/plain; job.yaml]... > > > > [7. text/plain; reproduce]... > > > -- > Thank you, > Richard. --=20 Dario Binacchi Embedded Linux Developer dario.binacchi@amarulasolutions.com __________________________________ Amarula Solutions SRL Via Le Canevare 30, 31100 Treviso, Veneto, IT T. +39 042 243 5310 info@amarulasolutions.com www.amarulasolutions.com