INFO: task khugepaged:37 blocked for more than 143 seconds.
Not tainted 6.10.0-rc7-next-20240712-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:khugepaged state:D stack:27088 pid:37 tgid:37 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5239 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6603
__schedule_loop kernel/sched/core.c:6680 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6695
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6752
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
mmap_write_lock include/linux/mmap_lock.h:106 [inline]
collapse_huge_page mm/khugepaged.c:1152 [inline]
hpage_collapse_scan_pmd+0x24ea/0x4dc0 mm/khugepaged.c:1419
khugepaged_scan_mm_slot mm/khugepaged.c:2427 [inline]
khugepaged_do_scan mm/khugepaged.c:2514 [inline]
khugepaged+0xbe6/0x1dc0 mm/khugepaged.c:2570
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:144
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task syz.3.165:6063 blocked for more than 144 seconds.
Not tainted 6.10.0-rc7-next-20240712-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.165 state:D stack:25520 pid:6063 tgid:6063 ppid:5105 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5239 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6603
__schedule_loop kernel/sched/core.c:6680 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6695
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6752
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
mmap_read_lock+0x1c/0x60 include/linux/mmap_lock.h:144
unmap_single_vma+0x2a0/0x330 mm/memory.c:1832
unmap_vmas+0x3cc/0x5f0 mm/memory.c:1904
exit_mmap+0x264/0xc80 mm/mmap.c:3412
__mmput+0x115/0x390 kernel/fork.c:1347
exit_mm+0x220/0x310 kernel/exit.c:571
do_exit+0x9b2/0x27f0 kernel/exit.c:869
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
__do_sys_exit_group kernel/exit.c:1042 [inline]
__se_sys_exit_group kernel/exit.c:1040 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1040
x64_sys_call+0x26c3/0x26d0 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff53b575bd9
RSP: 002b:00007ffcb03ed4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff53b575bd9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000001eb03ed5ff R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffcb03ed5c0
R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffcb03ed5c0
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc7-next-20240712-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfee/0x1030 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:144
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 9053 Comm: udevd Not tainted 6.10.0-rc7-next-20240712-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:page_table_check_clear+0x1ae/0x550 mm/page_table_check.c:89
Code: 4c 01 eb 4d 85 e4 75 7c 48 89 df be 04 00 00 00 e8 77 c0 f4 ff 48 89 d8 48 c1 e8 03 0f b6 04 28 84 c0 0f 85 13 01 00 00 8b 2b <31> ff 89 ee e8 e9 3b 8d ff 85 ed 0f 85 be 01 00 00 48 8d 7b 04 be
RSP: 0018:ffffc9000449f1c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888015cbd288 RCX: ffffffff82069329
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888015cbd288
RBP: 0000000000000000 R08: ffff888015cbd28b R09: 1ffff11002b97a51
R10: dffffc0000000000 R11: ffffed1002b97a52 R12: 0000000000000000
R13: ffff888015cbd240 R14: 0000000000000000 R15: 1ffffffff290ed60
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4684cc2723 CR3: 0000000055a58000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
get_and_clear_full_ptes include/linux/pgtable.h:678 [inline]
zap_present_folio_ptes mm/memory.c:1493 [inline]
zap_present_ptes mm/memory.c:1576 [inline]
zap_pte_range mm/memory.c:1618 [inline]
zap_pmd_range mm/memory.c:1736 [inline]
zap_pud_range mm/memory.c:1765 [inline]
zap_p4d_range mm/memory.c:1786 [inline]
unmap_page_range+0x2b48/0x42c0 mm/memory.c:1807
unmap_vmas+0x3cc/0x5f0 mm/memory.c:1904
exit_mmap+0x264/0xc80 mm/mmap.c:3412
__mmput+0x115/0x390 kernel/fork.c:1347
exec_mmap+0x680/0x710 fs/exec.c:1067
begin_new_exec+0x125f/0x1f50 fs/exec.c:1333
load_elf_binary+0x969/0x2680 fs/binfmt_elf.c:996
search_binary_handler fs/exec.c:1799 [inline]
exec_binprm fs/exec.c:1841 [inline]
bprm_execve+0xaf8/0x1770 fs/exec.c:1892
do_execveat_common+0x553/0x700 fs/exec.c:1999
do_execve fs/exec.c:2073 [inline]
__do_sys_execve fs/exec.c:2149 [inline]
__se_sys_execve fs/exec.c:2144 [inline]
__x64_sys_execve+0x92/0xb0 fs/exec.c:2144
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4684cfcef7
Code: Unable to access opcode bytes at 0x7f4684cfcecd.
RSP: 002b:00007ffe516f7948 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00007f46850ddae0 RCX: 00007f4684cfcef7
RDX: 000055dd70bb0240 RSI: 00007ffe516f7a48 RDI: 00007ffe516f7e48
RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000008 R11: 0000000000000246 R12: 000000000000000e
R13: 000000000000000b R14: 000055dd6f05ff18 R15: 00007ffe516f96c8