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INFO: task hung in ext4_readdir (2)

Status: auto-obsoleted due to no activity on 2024/08/30 05:09
Subsystems: ext4
[Documentation on labels]
First crash: 252d, last: 252d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in ext4_readdir ext4 2 459d 462d 0/28 auto-obsoleted due to no activity on 2024/02/05 13:15

Sample crash report:
INFO: task syz-executor.2:5860 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc1-syzkaller-00104-gd8ec19857b09 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:25208 pid:5860  tgid:5853  ppid:5536   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x1796/0x49d0 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 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
 inode_lock_shared include/linux/fs.h:801 [inline]
 dir_relax_shared include/linux/fs.h:3603 [inline]
 ext4_readdir+0x1b60/0x3500 fs/ext4/dir.c:302
 iterate_dir+0x65e/0x820 fs/readdir.c:110
 __do_sys_getdents fs/readdir.c:326 [inline]
 __se_sys_getdents+0x1ef/0x4d0 fs/readdir.c:311
 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: 0033:0x7fda6f67cee9
RSP: 002b:00007fda703c80c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007fda6f7b4070 RCX: 00007fda6f67cee9
RDX: 00000000000000a8 RSI: 0000000020000680 RDI: 0000000000000005
RBP: 00007fda6f6c947f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fda6f7b4070 R15: 00007ffdd3961a58
 </TASK>
INFO: task syz-executor.2:5861 blocked for more than 144 seconds.
      Not tainted 6.10.0-rc1-syzkaller-00104-gd8ec19857b09 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:22448 pid:5861  tgid:5853  ppid:5536   flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x1796/0x49d0 kernel/sched/core.c:6745

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/01 05:04 upstream d8ec19857b09 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in ext4_readdir
2024/06/01 05:03 upstream d8ec19857b09 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in ext4_readdir
2024/06/01 05:02 upstream d8ec19857b09 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in ext4_readdir
* Struck through repros no longer work on HEAD.