watchdog: BUG: soft lockup - CPU#1 stuck for 135s! [syz-executor1:13811]
Modules linked in:
irq event stamp: 2655480
hardirqs last  enabled at (2655479): [<00000000ae4288df>] snd_pcm_stream_unlock_irq+0x78/0xe0 sound/core/pcm_native.c:166
hardirqs last disabled at (2655480): [<00000000a378aace>] apic_timer_interrupt+0xa4/0xb0 arch/x86/entry/entry_64.S:920
softirqs last  enabled at (328700): [<000000002c2267b1>] __do_softirq+0x637/0x99f kernel/softirq.c:311
softirqs last disabled at (328669): [<000000002bd0638b>] invoke_softirq kernel/softirq.c:365 [inline]
softirqs last disabled at (328669): [<000000002bd0638b>] irq_exit+0x1cc/0x200 kernel/softirq.c:405
CPU: 1 PID: 13811 Comm: syz-executor1 Not tainted 4.15.0-rc6-next-20180105+ #89
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:memcpy+0x27/0x50 mm/kasan/kasan.c:303
RSP: 0018:ffff8801cf5f7920 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff11
RAX: 0000000000000002 RBX: 0000000000000002 RCX: ffffffff83b7e11e
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8801cf5f7a00
RBP: ffff8801cf5f7938 R08: ffffed0039ebef40 R09: ffffed0039ebef40
R10: 0000000000000001 R11: ffffed0039ebef40 R12: ffffc9000129b8f2
R13: ffff8801cf5f7a00 R14: ffff8801d4fd6e00 R15: dffffc0000000000
FS:  00007fcd0c2ed700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000e20cd8 CR3: 00000001bde7a002 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 memcpy include/linux/string.h:344 [inline]
 cvt_s16_to_native sound/core/oss/mulaw.c:164 [inline]
 mulaw_decode+0x50e/0x740 sound/core/oss/mulaw.c:195
 mulaw_transfer+0x222/0x270 sound/core/oss/mulaw.c:273
 snd_pcm_plug_write_transfer+0x22c/0x390 sound/core/oss/pcm_plugin.c:619
 snd_pcm_oss_write2+0x22e/0x3c0 sound/core/oss/pcm_oss.c:1310
 snd_pcm_oss_write1 sound/core/oss/pcm_oss.c:1371 [inline]
 snd_pcm_oss_write+0x4c1/0x690 sound/core/oss/pcm_oss.c:2645
 __vfs_write+0xef/0x740 fs/read_write.c:480
 vfs_write+0x189/0x510 fs/read_write.c:544
 SYSC_write fs/read_write.c:589 [inline]
 SyS_write+0xd4/0x1a0 fs/read_write.c:581
 entry_SYSCALL_64_fastpath+0x23/0x9a
RIP: 0033:0x452ac9
RSP: 002b:00007fcd0c2ecc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcd0c2ed700 RCX: 0000000000452ac9
RDX: 00000000fffffee4 RSI: 0000000020735ee0 RDI: 0000000000000014
RBP: 0000000000a2f870 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000
R13: 0000000000a2f7ef R14: 00007fcd0c2ed9c0 R15: 0000000000000002
Code: 0f 1f 40 00 55 48 89 e5 41 55 49 89 f5 48 8b 4d 08 41 54 49 89 fc 53 48 89 d3 4c 89 ef 48 89 de 31 d2 e8 bd f7 ff ff 48 8b 4d 08 <48> 89 de 4c 89 e7 ba 01 00 00 00 e8 a9 f7 ff ff 48 89 da 4c 89 
Kernel panic - not syncing: softlockup: hung tasks
CPU: 1 PID: 13811 Comm: syz-executor1 Tainted: G             L   4.15.0-rc6-next-20180105+ #89
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x137/0x198 lib/dump_stack.c:53
 panic+0x1e4/0x41c kernel/panic.c:183
 watchdog_timer_fn+0x314/0x320 kernel/watchdog.c:443
 __run_hrtimer kernel/time/hrtimer.c:1210 [inline]
 __hrtimer_run_queues+0x2c8/0xb50 kernel/time/hrtimer.c:1274
 hrtimer_interrupt+0x1c2/0x5e0 kernel/time/hrtimer.c:1308
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline]
 smp_apic_timer_interrupt+0xc9/0x4c0 arch/x86/kernel/apic/apic.c:1050
 apic_timer_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:920
 </IRQ>
RIP: 0010:memcpy+0x27/0x50 mm/kasan/kasan.c:303
RSP: 0018:ffff8801cf5f7920 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff11
RAX: 0000000000000002 RBX: 0000000000000002 RCX: ffffffff83b7e11e
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8801cf5f7a00
RBP: ffff8801cf5f7938 R08: ffffed0039ebef40 R09: ffffed0039ebef40
R10: 0000000000000001 R11: ffffed0039ebef40 R12: ffffc9000129b8f2
R13: ffff8801cf5f7a00 R14: ffff8801d4fd6e00 R15: dffffc0000000000
 memcpy include/linux/string.h:344 [inline]
 cvt_s16_to_native sound/core/oss/mulaw.c:164 [inline]
 mulaw_decode+0x50e/0x740 sound/core/oss/mulaw.c:195
 mulaw_transfer+0x222/0x270 sound/core/oss/mulaw.c:273
 snd_pcm_plug_write_transfer+0x22c/0x390 sound/core/oss/pcm_plugin.c:619
 snd_pcm_oss_write2+0x22e/0x3c0 sound/core/oss/pcm_oss.c:1310
 snd_pcm_oss_write1 sound/core/oss/pcm_oss.c:1371 [inline]
 snd_pcm_oss_write+0x4c1/0x690 sound/core/oss/pcm_oss.c:2645
 __vfs_write+0xef/0x740 fs/read_write.c:480
 vfs_write+0x189/0x510 fs/read_write.c:544
 SYSC_write fs/read_write.c:589 [inline]
 SyS_write+0xd4/0x1a0 fs/read_write.c:581
 entry_SYSCALL_64_fastpath+0x23/0x9a
RIP: 0033:0x452ac9
RSP: 002b:00007fcd0c2ecc58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcd0c2ed700 RCX: 0000000000452ac9
RDX: 00000000fffffee4 RSI: 0000000020735ee0 RDI: 0000000000000014
RBP: 0000000000a2f870 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000
R13: 0000000000a2f7ef R14: 00007fcd0c2ed9c0 R15: 0000000000000002
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..