INFO: task syz-executor.5:24258 blocked for more than 143 seconds.
Not tainted 5.2.0-rc4+ #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.5 D27136 24258 11907 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2818 [inline]
__schedule+0x7cb/0x1560 kernel/sched/core.c:3445
schedule+0xa8/0x260 kernel/sched/core.c:3509
__rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:495 [inline]
rwsem_down_read_failed+0x213/0x460 kernel/locking/rwsem-xadd.c:515
__down_read kernel/locking/rwsem.h:178 [inline]
down_read+0xa5/0x1e0 kernel/locking/rwsem.c:26
do_user_addr_fault arch/x86/mm/fault.c:1408 [inline]
__do_page_fault+0x9e9/0xda0 arch/x86/mm/fault.c:1523
do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1554
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1156
RIP: 0033:0x4019f7
Code: 01 00 00 c1 01 00 00 c4 01 00 00 c8 01 00 00 ca 01 00 00 cb 01 00 00 cc 01 00 00 ce 01 00 00 cf 01 00 00 d2 01 00 00 d5 01 00 <00> d8 01 00 00 db 01 00 00 e1 01 00 00 e6 01 00 00 00 00 00 00 00
RSP: 002b:00007fff246d5840 EFLAGS: 00010287
RAX: 0000001b2be2f000 RBX: 00000000b1c85a39 RCX: 0000001b2ce20000
RDX: 0000001b2be2f004 RSI: 0000000000000cdd RDI: ffffffff7a9f6cdd
RBP: 000000000000037d R08: 000000007a9f6cdd R09: 000000007a9f6ce1
R10: 00007fff246d59f0 R11: 0000000000000246 R12: 000000000075c050
R13: 0000000080000000 R14: 00007fccae020008 R15: 0000000000005763
INFO: task syz-executor.5:24268 blocked for more than 143 seconds.
Not tainted 5.2.0-rc4+ #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.5 D26992 24268 11907 0x80004004
Call Trace:
context_switch kernel/sched/core.c:2818 [inline]
__schedule+0x7cb/0x1560 kernel/sched/core.c:3445
schedule+0xa8/0x260 kernel/sched/core.c:3509
__rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:495 [inline]
rwsem_down_read_failed+0x213/0x460 kernel/locking/rwsem-xadd.c:515
__down_read kernel/locking/rwsem.h:178 [inline]
down_read+0xa5/0x1e0 kernel/locking/rwsem.c:26
exit_mm kernel/exit.c:513 [inline]
do_exit+0x443/0x2fa0 kernel/exit.c:864
do_group_exit+0x135/0x370 kernel/exit.c:981
get_signal+0x471/0x24b0 kernel/signal.c:2640
do_signal+0x87/0x1900 arch/x86/kernel/signal.c:815
exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:164
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath arch/x86/entry/common.c:279 [inline]
do_syscall_64+0x58e/0x680 arch/x86/entry/common.c:304
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4592c9
Code: Bad RIP value.
RSP: 002b:00007fccac1fdcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000075bfd0 RCX: 00000000004592c9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075bfd0
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bfd4
R13: 00007fff246d589f R14: 00007fccac1fe9c0 R15: 000000000075bfd4
INFO: task syz-executor.5:24423 blocked for more than 144 seconds.
Not tainted 5.2.0-rc4+ #33
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.5 D29656 24423 11907 0x80004004
Call Trace:
context_switch kernel/sched/core.c:2818 [inline]
__schedule+0x7cb/0x1560 kernel/sched/core.c:3445
schedule+0xa8/0x260 kernel/sched/core.c:3509
__rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:495 [inline]
rwsem_down_read_failed+0x213/0x460 kernel/locking/rwsem-xadd.c:515
__down_read kernel/locking/rwsem.h:178 [inline]
down_read+0xa5/0x1e0 kernel/locking/rwsem.c:26
exit_mm kernel/exit.c:513 [inline]
do_exit+0x443/0x2fa0 kernel/exit.c:864
do_group_exit+0x135/0x370 kernel/exit.c:981
get_signal+0x471/0x24b0 kernel/signal.c:2640
do_signal+0x87/0x1900 arch/x86/kernel/signal.c:815
exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:164
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath arch/x86/entry/common.c:279 [inline]
do_syscall_64+0x58e/0x680 arch/x86/entry/common.c:304
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4592c9
Code: Bad RIP value.
RSP: 002b:00007fccac1dccf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000075c078 RCX: 00000000004592c9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075c078
RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075c07c
R13: 00007fff246d589f R14: 00007fccac1dd9c0 R15: 000000000075c07c
Showing all locks held in the system:
1 lock held by khungtaskd/1042:
#0: 000000000d827385 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:5149
1 lock held by rsyslogd/8563:
#0: 000000002a427ebd (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:801
2 locks held by getty/8652:
#0: 0000000049c72c35 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 000000007d99d202 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/8653:
#0: 0000000011a3c7b7 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000de9c0db8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/8654:
#0: 000000003e9aa96f (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000e1830cd8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/8655:
#0: 00000000a1debf92 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 0000000087c7f71f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/8656:
#0: 00000000579ccaa4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 0000000039f61a13 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/8657:
#0: 000000007d86448e (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000eaf50ce6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
2 locks held by getty/8658:
#0: 000000003459b847 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 000000004119741f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2156
1 lock held by syz-executor.5/24258:
#0: 00000000f4bdc468 (&mm->mmap_sem#2){++++}, at: do_user_addr_fault arch/x86/mm/fault.c:1408 [inline]
#0: 00000000f4bdc468 (&mm->mmap_sem#2){++++}, at: __do_page_fault+0x9e9/0xda0 arch/x86/mm/fault.c:1523
1 lock held by syz-executor.5/24259:
1 lock held by syz-executor.5/24268:
#0: 00000000f4bdc468 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:513 [inline]
#0: 00000000f4bdc468 (&mm->mmap_sem#2){++++}, at: do_exit+0x443/0x2fa0 kernel/exit.c:864
1 lock held by syz-executor.5/24423:
#0: 00000000f4bdc468 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:513 [inline]
#0: 00000000f4bdc468 (&mm->mmap_sem#2){++++}, at: do_exit+0x443/0x2fa0 kernel/exit.c:864
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1042 Comm: khungtaskd Not tainted 5.2.0-rc4+ #33
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x172/0x1f0 lib/dump_stack.c:113
nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1be/0x236 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline]
watchdog+0x9b7/0xec0 kernel/hung_task.c:289
kthread+0x354/0x420 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 24259 Comm: syz-executor.5 Not tainted 5.2.0-rc4+ #33
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sanitizer_cov_trace_pc+0x3b/0x50 kernel/kcov.c:107
Code: 65 8b 15 30 4c 91 7e 81 e2 00 01 1f 00 75 2b 8b 90 e0 12 00 00 83 fa 02 75 20 48 8b 88 e8 12 00 00 8b 80 e4 12 00 00 48 8b 11 <48> 83 c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 5d c3 0f 1f 00 65
RSP: 0018:ffff8880ae909f68 EFLAGS: 00000046
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000d434000
RDX: 000000000003ffff RSI: ffffffff833572cc RDI: 0000000000000007
RBP: ffff8880ae909f68 R08: ffff888092b44040 R09: ffffffff89bec048
R10: ffffffff89bec050 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007fccac21f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000045929f CR3: 000000007fa01000 CR4: 00000000001406e0
Call Trace:
debug_smp_processor_id+0x3c/0x280 lib/smp_processor_id.c:57
tick_irq_exit kernel/softirq.c:390 [inline]
irq_exit+0x6d/0x1d0 kernel/softirq.c:415
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1068
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:806
RIP: 0010:isolate_migratepages mm/compaction.c:1820 [inline]
RIP: 0010:compact_zone+0x1418/0x3820 mm/compaction.c:2158
Code: 8d 18 ff ff ff 4c 89 ff 48 8b 95 70 ff ff ff 48 8b b5 50 ff ff ff e8 67 6a ff ff 31 ff 48 89 c3 48 89 c6 48 89 85 70 ff ff ff d3 e9 d8 ff 48 85 db 0f 84 21 fb ff ff e8 25 e8 d8 ff 48 8b 85
RSP: 0018:ffff88809b1df4c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 000000000002a160 RBX: 000000000002a160 RCX: 0000000000000000
RDX: 0000000000040000 RSI: 000000000002a160 RDI: 0000000000000000
RBP: ffff88809b1df660 R08: ffff888092b44040 R09: ffffed1015d26be0
R10: ffffed1015d26bdf R11: ffff8880ae935efb R12: ffffea0000a80000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff88809b1df6c0
compact_zone_order+0x1af/0x2a0 mm/compaction.c:2308
try_to_compact_pages+0x268/0xaf0 mm/compaction.c:2360
__alloc_pages_direct_compact+0x154/0x460 mm/page_alloc.c:3830
__alloc_pages_slowpath+0xb14/0x28f0 mm/page_alloc.c:4469
__alloc_pages_nodemask+0x600/0x8d0 mm/page_alloc.c:4677
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
alloc_pages_vma+0x39a/0x540 mm/mempolicy.c:2088
new_page+0x2d5/0x3d0 mm/mempolicy.c:1145
unmap_and_move mm/migrate.c:1180 [inline]
migrate_pages+0x47f/0x2ae0 mm/migrate.c:1431
do_mbind mm/mempolicy.c:1256 [inline]
kernel_mbind+0xaf1/0xd90 mm/mempolicy.c:1373
__do_sys_mbind mm/mempolicy.c:1380 [inline]
__se_sys_mbind mm/mempolicy.c:1376 [inline]
__x64_sys_mbind+0xe1/0x1a0 mm/mempolicy.c:1376
do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4592c9
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fccac21ec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00000000004592c9
RDX: 0000000000000000 RSI: 0000000000c00000 RDI: 0000000020012000
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000010000000002
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fccac21f6d4
R13: 00000000004c5541 R14: 00000000004d9830 R15: 00000000ffffffff