From: kernel test robot <oliver.sang@intel.com>
To: Leon Romanovsky <leon@kernel.org>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>, <oliver.sang@intel.com>
Subject: [leon-rdma:block-with-mmio-v3] [block] 9a4caff96c: INFO:task_blocked_for_more_than#seconds
Date: Fri, 31 Oct 2025 17:10:41 +0800 [thread overview]
Message-ID: <202510311657.c2d98d1-lkp@intel.com> (raw)
Hello,
kernel test robot noticed "INFO:task_blocked_for_more_than#seconds" on:
commit: 9a4caff96c25ffb7fe2c88bb9f79defe31865264 ("block-dma: properly take MMIO path")
https://git.kernel.org/cgit/linux/kernel/git/leon/linux-rdma.git block-with-mmio-v3
in testcase: fsmark
version: fsmark-x86_64-2628be5-1_20251009
with following parameters:
disk: 1BRD_48G
iterations: 4
nr_threads: 10%
fs: ext4
filesize: 9B
test_size: 16G
sync_method: NoSync
nr_directories: 16d
nr_files_per_directory: 256fpd
cpufreq_governor: performance
config: x86_64-rhel-9.4
compiler: gcc-14
test machine: 192 threads 4 sockets Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz (Cascade Lake) with 176G memory
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202510311657.c2d98d1-lkp@intel.com
[ 992.561688][ T1368] INFO: task (udev-worker):1740 blocked for more than 491 seconds.
[ 992.569476][ T1368] Tainted: G S 6.18.0-rc1-00003-g9a4caff96c25 #1
[ 992.577673][ T1368] Blocked by coredump.
[ 992.582126][ T1368] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 992.590661][ T1368] task:(udev-worker) state:D stack:0 pid:1740 tgid:1740 ppid:1733 task_flags:0x40054c flags:0x00080003
[ 992.602425][ T1368] Call Trace:
[ 992.605578][ T1368] <TASK>
[ 992.608387][ T1368] __schedule (kernel/sched/core.c:5325 kernel/sched/core.c:6929)
[ 992.612594][ T1368] schedule (arch/x86/include/asm/bitops.h:202 arch/x86/include/asm/bitops.h:232 include/linux/thread_info.h:192 include/linux/thread_info.h:208 include/linux/sched.h:2217 kernel/sched/core.c:7013 kernel/sched/core.c:7026)
[ 992.616446][ T1368] io_schedule (kernel/sched/core.c:7846 (discriminator 1) kernel/sched/core.c:7872 (discriminator 1))
[ 992.620556][ T1368] folio_wait_bit_common (mm/filemap.c:1319)
[ 992.625714][ T1368] ? find_get_entries (mm/filemap.c:2068 mm/filemap.c:2123)
[ 992.630530][ T1368] ? __pfx_wake_page_function (mm/filemap.c:1141)
[ 992.635952][ T1368] truncate_inode_pages_range (include/linux/pagemap.h:1141 mm/truncate.c:433)
[ 992.641544][ T1368] blkdev_flush_mapping (block/bdev.c:49 block/bdev.c:66 block/bdev.c:713)
[ 992.646444][ T1368] bdev_release (block/bdev.c:719 block/bdev.c:1144)
[ 992.650818][ T1368] blkdev_release (block/fops.c:711)
[ 992.655188][ T1368] __fput (fs/file_table.c:469 (discriminator 1))
[ 992.658954][ T1368] task_work_run (include/linux/sched.h:2092 kernel/task_work.c:229)
[ 992.663237][ T1368] do_exit (kernel/exit.c:967)
[ 992.667171][ T1368] do_group_exit (kernel/exit.c:1089)
[ 992.671454][ T1368] get_signal (kernel/signal.c:3034)
[ 992.675656][ T1368] arch_do_signal_or_restart (arch/x86/include/asm/current.h:23 arch/x86/kernel/signal.c:258 arch/x86/kernel/signal.c:339)
[ 992.681072][ T1368] exit_to_user_mode_loop (kernel/entry/common.c:42)
[ 992.686221][ T1368] do_syscall_64 (include/linux/irq-entry-common.h:225 include/linux/entry-common.h:175 include/linux/entry-common.h:210 arch/x86/entry/syscall_64.c:100)
[ 992.690679][ T1368] ? __x64_sys_mprotect (mm/mprotect.c:1011 (discriminator 1) mm/mprotect.c:1008 (discriminator 1) mm/mprotect.c:1008 (discriminator 1))
[ 992.695572][ T1368] ? do_syscall_64 (arch/x86/include/asm/jump_label.h:36 include/linux/context_tracking_state.h:108 include/linux/context_tracking.h:41 include/linux/irq-entry-common.h:261 include/linux/entry-common.h:212 arch/x86/entry/syscall_64.c:100)
[ 992.700111][ T1368] ? __x64_sys_mprotect (mm/mprotect.c:1011 (discriminator 1) mm/mprotect.c:1008 (discriminator 1) mm/mprotect.c:1008 (discriminator 1))
[ 992.705001][ T1368] ? do_syscall_64 (arch/x86/include/asm/jump_label.h:36 include/linux/context_tracking_state.h:108 include/linux/context_tracking.h:41 include/linux/irq-entry-common.h:261 include/linux/entry-common.h:212 arch/x86/entry/syscall_64.c:100)
[ 992.709540][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 992.714085][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 992.718625][ T1368] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 992.724382][ T1368] RIP: 0033:0x7f791bdd2687
[ 992.728660][ T1368] RSP: 002b:00007ffc047ddce0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[ 992.736932][ T1368] RAX: 0000000000009000 RBX: 00007f791b2f5980 RCX: 00007f791bdd2687
[ 992.744783][ T1368] RDX: 0000000000040000 RSI: 00007f791a3fe000 RDI: 0000000000000016
[ 992.752618][ T1368] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 992.760452][ T1368] R10: 0000000000000000 R11: 0000000000000202 R12: 000055cb203abcf0
[ 992.768286][ T1368] R13: 0000000000000000 R14: 000055cb203abd50 R15: 000055cb203f74c8
[ 992.776124][ T1368] </TASK>
[ 992.779035][ T1368] INFO: task (udev-worker):1865 blocked for more than 491 seconds.
[ 992.786835][ T1368] Tainted: G S 6.18.0-rc1-00003-g9a4caff96c25 #1
[ 992.795017][ T1368] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 992.803546][ T1368] task:(udev-worker) state:D stack:0 pid:1865 tgid:1865 ppid:1733 task_flags:0x400140 flags:0x00080003
[ 992.815684][ T1368] Call Trace:
[ 992.819025][ T1368] <TASK>
[ 992.822008][ T1368] __schedule (kernel/sched/core.c:5325 kernel/sched/core.c:6929)
[ 992.826351][ T1368] schedule (arch/x86/include/asm/bitops.h:202 arch/x86/include/asm/bitops.h:232 include/linux/thread_info.h:192 include/linux/thread_info.h:208 include/linux/sched.h:2217 kernel/sched/core.c:7013 kernel/sched/core.c:7026)
[ 992.830343][ T1368] schedule_preempt_disabled (kernel/sched/core.c:7085)
[ 992.835808][ T1368] rwsem_down_write_slowpath (arch/x86/include/asm/jump_label.h:36 kernel/locking/rwsem.c:1187)
[ 992.841439][ T1368] down_write (kernel/locking/rwsem.c:1592)
[ 992.845593][ T1368] blkdev_llseek (include/linux/fs.h:1099 (discriminator 2) block/fops.c:612 (discriminator 2))
[ 992.850004][ T1368] __x64_sys_lseek (fs/read_write.c:389 fs/read_write.c:402 fs/read_write.c:412 fs/read_write.c:410 fs/read_write.c:410)
[ 992.854589][ T1368] do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 992.859086][ T1368] ? do_user_addr_fault (arch/x86/mm/fault.c:1337)
[ 992.864282][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 992.868959][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 992.873629][ T1368] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 992.879517][ T1368] RIP: 0033:0x7f791be46637
[ 992.883925][ T1368] RSP: 002b:00007ffc047ddd28 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
[ 992.892326][ T1368] RAX: ffffffffffffffda RBX: 0000000000000200 RCX: 00007f791be46637
[ 992.900294][ T1368] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000006f
[ 992.908274][ T1368] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffc047ddd90
[ 992.916250][ T1368] R10: 0000000000000000 R11: 0000000000000246 R12: 000055cb203abcf0
[ 992.924222][ T1368] R13: 0000000000000000 R14: 000055cb203abd50 R15: 000055cb203abd50
[ 992.932199][ T1368] </TASK>
[ 992.935386][ T1368] INFO: task (udev-worker):1865 <writer> blocked on an rw-semaphore likely owned by task blkid:6562 <reader>
[ 992.947058][ T1368] task:blkid state:D stack:0 pid:6562 tgid:6562 ppid:2143 task_flags:0x400000 flags:0x00080001
[ 992.959091][ T1368] Call Trace:
[ 992.962398][ T1368] <TASK>
[ 992.965361][ T1368] __schedule (kernel/sched/core.c:5325 kernel/sched/core.c:6929)
[ 992.969712][ T1368] schedule (arch/x86/include/asm/bitops.h:202 arch/x86/include/asm/bitops.h:232 include/linux/thread_info.h:192 include/linux/thread_info.h:208 include/linux/sched.h:2217 kernel/sched/core.c:7013 kernel/sched/core.c:7026)
[ 992.973715][ T1368] io_schedule (kernel/sched/core.c:7846 (discriminator 1) kernel/sched/core.c:7872 (discriminator 1))
[ 992.977970][ T1368] folio_wait_bit_common (mm/filemap.c:1319)
[ 992.983278][ T1368] ? __pfx_wake_page_function (mm/filemap.c:1141)
[ 992.988841][ T1368] filemap_update_page (mm/filemap.c:2511)
[ 992.993973][ T1368] filemap_get_pages (mm/filemap.c:2661)
[ 992.998930][ T1368] filemap_read (mm/filemap.c:2748)
[ 993.003363][ T1368] blkdev_read_iter (include/linux/fs.h:1005 block/fops.c:860)
[ 993.008145][ T1368] ? rw_verify_area (fs/read_write.c:473)
[ 993.012923][ T1368] vfs_read (fs/read_write.c:491 fs/read_write.c:572)
[ 993.017100][ T1368] ksys_read (fs/read_write.c:715)
[ 993.021189][ T1368] do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 993.025712][ T1368] ? arch_get_unmapped_area_topdown (arch/x86/kernel/sys_x86_64.c:227)
[ 993.031961][ T1368] ? do_mmap (mm/mmap.c:558)
[ 993.036215][ T1368] ? vm_mmap_pgoff (mm/util.c:585)
[ 993.040987][ T1368] ? do_syscall_64 (arch/x86/include/asm/jump_label.h:36 include/linux/context_tracking_state.h:108 include/linux/context_tracking.h:41 include/linux/irq-entry-common.h:261 include/linux/entry-common.h:212 arch/x86/entry/syscall_64.c:100)
[ 993.045674][ T1368] ? __x64_sys_mprotect (mm/mprotect.c:1011 (discriminator 1) mm/mprotect.c:1008 (discriminator 1) mm/mprotect.c:1008 (discriminator 1))
[ 993.050707][ T1368] ? do_syscall_64 (arch/x86/include/asm/jump_label.h:36 include/linux/context_tracking_state.h:108 include/linux/context_tracking.h:41 include/linux/irq-entry-common.h:261 include/linux/entry-common.h:212 arch/x86/entry/syscall_64.c:100)
[ 993.055381][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 993.060050][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 993.064721][ T1368] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 993.070610][ T1368] RIP: 0033:0x7efc7b383687
[ 993.075030][ T1368] RSP: 002b:00007ffc29204100 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[ 993.083440][ T1368] RAX: ffffffffffffffda RBX: 00007efc7b2f1740 RCX: 00007efc7b383687
[ 993.091412][ T1368] RDX: 0000000000040000 RSI: 00007efc7b233000 RDI: 0000000000000006
[ 993.099386][ T1368] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 993.107362][ T1368] R10: 0000000000000000 R11: 0000000000000202 R12: 000055bfdadf9f40
[ 993.115336][ T1368] R13: 0000000000000000 R14: 000055bfdadf9fa0 R15: 000055bfdadfa568
[ 993.123309][ T1368] </TASK>
[ 993.126360][ T1368] INFO: task (udev-worker):2032 blocked for more than 492 seconds.
[ 993.134315][ T1368] Tainted: G S 6.18.0-rc1-00003-g9a4caff96c25 #1
[ 993.142693][ T1368] Blocked by coredump.
[ 993.147326][ T1368] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 993.156047][ T1368] task:(udev-worker) state:D stack:0 pid:2032 tgid:2032 ppid:1733 task_flags:0x40054c flags:0x00080003
[ 993.168115][ T1368] Call Trace:
[ 993.171491][ T1368] <TASK>
[ 993.174489][ T1368] __schedule (kernel/sched/core.c:5325 kernel/sched/core.c:6929)
[ 993.178872][ T1368] schedule (arch/x86/include/asm/bitops.h:202 arch/x86/include/asm/bitops.h:232 include/linux/thread_info.h:192 include/linux/thread_info.h:208 include/linux/sched.h:2217 kernel/sched/core.c:7013 kernel/sched/core.c:7026)
[ 993.182904][ T1368] io_schedule (kernel/sched/core.c:7846 (discriminator 1) kernel/sched/core.c:7872 (discriminator 1))
[ 993.187200][ T1368] folio_wait_bit_common (mm/filemap.c:1319)
[ 993.192526][ T1368] ? find_get_entries (mm/filemap.c:2068 mm/filemap.c:2123)
[ 993.197500][ T1368] ? __pfx_wake_page_function (mm/filemap.c:1141)
[ 993.203084][ T1368] truncate_inode_pages_range (include/linux/pagemap.h:1141 mm/truncate.c:433)
[ 993.208839][ T1368] blkdev_flush_mapping (block/bdev.c:49 block/bdev.c:66 block/bdev.c:713)
[ 993.213907][ T1368] bdev_release (block/bdev.c:719 block/bdev.c:1144)
[ 993.218448][ T1368] blkdev_release (block/fops.c:711)
[ 993.222988][ T1368] __fput (fs/file_table.c:469 (discriminator 1))
[ 993.226915][ T1368] task_work_run (include/linux/sched.h:2092 kernel/task_work.c:229)
[ 993.231362][ T1368] do_exit (kernel/exit.c:967)
[ 993.235463][ T1368] do_group_exit (kernel/exit.c:1089)
[ 993.239922][ T1368] get_signal (kernel/signal.c:3034)
[ 993.244294][ T1368] arch_do_signal_or_restart (arch/x86/include/asm/current.h:23 arch/x86/kernel/signal.c:258 arch/x86/kernel/signal.c:339)
[ 993.249896][ T1368] exit_to_user_mode_loop (kernel/entry/common.c:42)
[ 993.255222][ T1368] do_syscall_64 (include/linux/irq-entry-common.h:225 include/linux/entry-common.h:175 include/linux/entry-common.h:210 arch/x86/entry/syscall_64.c:100)
[ 993.259847][ T1368] ? __cond_resched (kernel/sched/core.c:7477)
[ 993.264558][ T1368] ? blkdev_llseek (block/fops.c:615)
[ 993.269180][ T1368] ? __x64_sys_lseek (fs/read_write.c:389 fs/read_write.c:402 fs/read_write.c:412 fs/read_write.c:410 fs/read_write.c:410)
[ 993.273980][ T1368] ? do_syscall_64 (arch/x86/include/asm/jump_label.h:36 include/linux/context_tracking_state.h:108 include/linux/context_tracking.h:41 include/linux/irq-entry-common.h:261 include/linux/entry-common.h:212 arch/x86/entry/syscall_64.c:100)
[ 993.278696][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 993.283415][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 993.288116][ T1368] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 993.294047][ T1368] RIP: 0033:0x7f791bdd2687
[ 993.298496][ T1368] RSP: 002b:00007ffc047ddce0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[ 993.306944][ T1368] RAX: 0000000000009000 RBX: 00007f791b2f5980 RCX: 00007f791bdd2687
[ 993.314961][ T1368] RDX: 0000000000040000 RSI: 00007f791a3fe000 RDI: 000000000000010d
[ 993.323181][ T1368] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 993.331201][ T1368] R10: 0000000000000000 R11: 0000000000000202 R12: 000055cb203abcf0
[ 993.339222][ T1368] R13: 0000000000000000 R14: 000055cb203abd50 R15: 000055cb204e13d8
[ 993.347249][ T1368] </TASK>
[ 1484.081577][ T1368] INFO: task (udev-worker):1740 blocked for more than 983 seconds.
[ 1484.089563][ T1368] Tainted: G S 6.18.0-rc1-00003-g9a4caff96c25 #1
[ 1484.097956][ T1368] Blocked by coredump.
[ 1484.102636][ T1368] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1484.111388][ T1368] task:(udev-worker) state:D stack:0 pid:1740 tgid:1740 ppid:1733 task_flags:0x40054c flags:0x00080003
[ 1484.123530][ T1368] Call Trace:
[ 1484.126897][ T1368] <TASK>
[ 1484.129878][ T1368] __schedule (kernel/sched/core.c:5325 kernel/sched/core.c:6929)
[ 1484.134298][ T1368] schedule (arch/x86/include/asm/bitops.h:202 arch/x86/include/asm/bitops.h:232 include/linux/thread_info.h:192 include/linux/thread_info.h:208 include/linux/sched.h:2217 kernel/sched/core.c:7013 kernel/sched/core.c:7026)
[ 1484.138361][ T1368] io_schedule (kernel/sched/core.c:7846 (discriminator 1) kernel/sched/core.c:7872 (discriminator 1))
[ 1484.142669][ T1368] folio_wait_bit_common (mm/filemap.c:1319)
[ 1484.148019][ T1368] ? find_get_entries (mm/filemap.c:2068 mm/filemap.c:2123)
[ 1484.153023][ T1368] ? __pfx_wake_page_function (mm/filemap.c:1141)
[ 1484.158641][ T1368] truncate_inode_pages_range (include/linux/pagemap.h:1141 mm/truncate.c:433)
[ 1484.164406][ T1368] blkdev_flush_mapping (block/bdev.c:49 block/bdev.c:66 block/bdev.c:713)
[ 1484.169469][ T1368] bdev_release (block/bdev.c:719 block/bdev.c:1144)
[ 1484.174022][ T1368] blkdev_release (block/fops.c:711)
[ 1484.178581][ T1368] __fput (fs/file_table.c:469 (discriminator 1))
[ 1484.182523][ T1368] task_work_run (include/linux/sched.h:2092 kernel/task_work.c:229)
[ 1484.186979][ T1368] do_exit (kernel/exit.c:967)
[ 1484.191091][ T1368] do_group_exit (kernel/exit.c:1089)
[ 1484.195552][ T1368] get_signal (kernel/signal.c:3034)
[ 1484.199933][ T1368] arch_do_signal_or_restart (arch/x86/include/asm/current.h:23 arch/x86/kernel/signal.c:258 arch/x86/kernel/signal.c:339)
[ 1484.205529][ T1368] exit_to_user_mode_loop (kernel/entry/common.c:42)
[ 1484.210858][ T1368] do_syscall_64 (include/linux/irq-entry-common.h:225 include/linux/entry-common.h:175 include/linux/entry-common.h:210 arch/x86/entry/syscall_64.c:100)
[ 1484.215483][ T1368] ? __x64_sys_mprotect (mm/mprotect.c:1011 (discriminator 1) mm/mprotect.c:1008 (discriminator 1) mm/mprotect.c:1008 (discriminator 1))
[ 1484.220551][ T1368] ? do_syscall_64 (arch/x86/include/asm/jump_label.h:36 include/linux/context_tracking_state.h:108 include/linux/context_tracking.h:41 include/linux/irq-entry-common.h:261 include/linux/entry-common.h:212 arch/x86/entry/syscall_64.c:100)
[ 1484.225285][ T1368] ? __x64_sys_mprotect (mm/mprotect.c:1011 (discriminator 1) mm/mprotect.c:1008 (discriminator 1) mm/mprotect.c:1008 (discriminator 1))
[ 1484.230362][ T1368] ? do_syscall_64 (arch/x86/include/asm/jump_label.h:36 include/linux/context_tracking_state.h:108 include/linux/context_tracking.h:41 include/linux/irq-entry-common.h:261 include/linux/entry-common.h:212 arch/x86/entry/syscall_64.c:100)
[ 1484.235075][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 1484.239792][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 1484.244512][ T1368] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1484.250442][ T1368] RIP: 0033:0x7f791bdd2687
[ 1484.254895][ T1368] RSP: 002b:00007ffc047ddce0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[ 1484.263347][ T1368] RAX: 0000000000009000 RBX: 00007f791b2f5980 RCX: 00007f791bdd2687
[ 1484.271373][ T1368] RDX: 0000000000040000 RSI: 00007f791a3fe000 RDI: 0000000000000016
[ 1484.279414][ T1368] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 1484.287433][ T1368] R10: 0000000000000000 R11: 0000000000000202 R12: 000055cb203abcf0
[ 1484.295472][ T1368] R13: 0000000000000000 R14: 000055cb203abd50 R15: 000055cb203f74c8
[ 1484.303512][ T1368] </TASK>
[ 1484.306562][ T1368] INFO: task (udev-worker):1865 blocked for more than 983 seconds.
[ 1484.314949][ T1368] Tainted: G S 6.18.0-rc1-00003-g9a4caff96c25 #1
[ 1484.323606][ T1368] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1484.332598][ T1368] task:(udev-worker) state:D stack:0 pid:1865 tgid:1865 ppid:1733 task_flags:0x400140 flags:0x00080003
[ 1484.344655][ T1368] Call Trace:
[ 1484.347958][ T1368] <TASK>
[ 1484.350891][ T1368] __schedule (kernel/sched/core.c:5325 kernel/sched/core.c:6929)
[ 1484.355217][ T1368] schedule (arch/x86/include/asm/bitops.h:202 arch/x86/include/asm/bitops.h:232 include/linux/thread_info.h:192 include/linux/thread_info.h:208 include/linux/sched.h:2217 kernel/sched/core.c:7013 kernel/sched/core.c:7026)
[ 1484.359193][ T1368] schedule_preempt_disabled (kernel/sched/core.c:7085)
[ 1484.364642][ T1368] rwsem_down_write_slowpath (arch/x86/include/asm/jump_label.h:36 kernel/locking/rwsem.c:1187)
[ 1484.370256][ T1368] down_write (kernel/locking/rwsem.c:1592)
[ 1484.374391][ T1368] blkdev_llseek (include/linux/fs.h:1099 (discriminator 2) block/fops.c:612 (discriminator 2))
[ 1484.378788][ T1368] __x64_sys_lseek (fs/read_write.c:389 fs/read_write.c:402 fs/read_write.c:412 fs/read_write.c:410 fs/read_write.c:410)
[ 1484.383364][ T1368] do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1484.387851][ T1368] ? do_user_addr_fault (arch/x86/mm/fault.c:1337)
[ 1484.393027][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 1484.397691][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 1484.402350][ T1368] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1484.408224][ T1368] RIP: 0033:0x7f791be46637
[ 1484.412619][ T1368] RSP: 002b:00007ffc047ddd28 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
[ 1484.421005][ T1368] RAX: ffffffffffffffda RBX: 0000000000000200 RCX: 00007f791be46637
[ 1484.428963][ T1368] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000006f
[ 1484.436921][ T1368] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffc047ddd90
[ 1484.444875][ T1368] R10: 0000000000000000 R11: 0000000000000246 R12: 000055cb203abcf0
[ 1484.452833][ T1368] R13: 0000000000000000 R14: 000055cb203abd50 R15: 000055cb203abd50
[ 1484.460790][ T1368] </TASK>
[ 1484.463917][ T1368] INFO: task (udev-worker):1865 <writer> blocked on an rw-semaphore likely owned by task blkid:6562 <reader>
[ 1484.475571][ T1368] task:blkid state:D stack:0 pid:6562 tgid:6562 ppid:2143 task_flags:0x400000 flags:0x00080001
[ 1484.487586][ T1368] Call Trace:
[ 1484.490877][ T1368] <TASK>
[ 1484.493822][ T1368] __schedule (kernel/sched/core.c:5325 kernel/sched/core.c:6929)
[ 1484.498158][ T1368] schedule (arch/x86/include/asm/bitops.h:202 arch/x86/include/asm/bitops.h:232 include/linux/thread_info.h:192 include/linux/thread_info.h:208 include/linux/sched.h:2217 kernel/sched/core.c:7013 kernel/sched/core.c:7026)
[ 1484.502144][ T1368] io_schedule (kernel/sched/core.c:7846 (discriminator 1) kernel/sched/core.c:7872 (discriminator 1))
[ 1484.506388][ T1368] folio_wait_bit_common (mm/filemap.c:1319)
[ 1484.511676][ T1368] ? __pfx_wake_page_function (mm/filemap.c:1141)
[ 1484.517231][ T1368] filemap_update_page (mm/filemap.c:2511)
[ 1484.522350][ T1368] filemap_get_pages (mm/filemap.c:2661)
[ 1484.527288][ T1368] filemap_read (mm/filemap.c:2748)
[ 1484.531708][ T1368] blkdev_read_iter (include/linux/fs.h:1005 block/fops.c:860)
[ 1484.536471][ T1368] ? rw_verify_area (fs/read_write.c:473)
[ 1484.541242][ T1368] vfs_read (fs/read_write.c:491 fs/read_write.c:572)
[ 1484.545415][ T1368] ksys_read (fs/read_write.c:715)
[ 1484.549485][ T1368] do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1484.553982][ T1368] ? arch_get_unmapped_area_topdown (arch/x86/kernel/sys_x86_64.c:227)
[ 1484.560217][ T1368] ? do_mmap (mm/mmap.c:558)
[ 1484.564459][ T1368] ? vm_mmap_pgoff (mm/util.c:585)
[ 1484.569219][ T1368] ? do_syscall_64 (arch/x86/include/asm/jump_label.h:36 include/linux/context_tracking_state.h:108 include/linux/context_tracking.h:41 include/linux/irq-entry-common.h:261 include/linux/entry-common.h:212 arch/x86/entry/syscall_64.c:100)
[ 1484.573883][ T1368] ? __x64_sys_mprotect (mm/mprotect.c:1011 (discriminator 1) mm/mprotect.c:1008 (discriminator 1) mm/mprotect.c:1008 (discriminator 1))
[ 1484.578901][ T1368] ? do_syscall_64 (arch/x86/include/asm/jump_label.h:36 include/linux/context_tracking_state.h:108 include/linux/context_tracking.h:41 include/linux/irq-entry-common.h:261 include/linux/entry-common.h:212 arch/x86/entry/syscall_64.c:100)
[ 1484.583556][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 1484.588220][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 1484.592880][ T1368] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1484.598750][ T1368] RIP: 0033:0x7efc7b383687
[ 1484.603154][ T1368] RSP: 002b:00007ffc29204100 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[ 1484.611548][ T1368] RAX: ffffffffffffffda RBX: 00007efc7b2f1740 RCX: 00007efc7b383687
[ 1484.619502][ T1368] RDX: 0000000000040000 RSI: 00007efc7b233000 RDI: 0000000000000006
[ 1484.627459][ T1368] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 1484.635418][ T1368] R10: 0000000000000000 R11: 0000000000000202 R12: 000055bfdadf9f40
[ 1484.643384][ T1368] R13: 0000000000000000 R14: 000055bfdadf9fa0 R15: 000055bfdadfa568
[ 1484.651367][ T1368] </TASK>
[ 1484.654459][ T1368] INFO: task (udev-worker):2032 blocked for more than 983 seconds.
[ 1484.662409][ T1368] Tainted: G S 6.18.0-rc1-00003-g9a4caff96c25 #1
[ 1484.670801][ T1368] Blocked by coredump.
[ 1484.675464][ T1368] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1484.684212][ T1368] task:(udev-worker) state:D stack:0 pid:2032 tgid:2032 ppid:1733 task_flags:0x40054c flags:0x00080003
[ 1484.696278][ T1368] Call Trace:
[ 1484.699633][ T1368] <TASK>
[ 1484.702649][ T1368] __schedule (kernel/sched/core.c:5325 kernel/sched/core.c:6929)
[ 1484.707056][ T1368] schedule (arch/x86/include/asm/bitops.h:202 arch/x86/include/asm/bitops.h:232 include/linux/thread_info.h:192 include/linux/thread_info.h:208 include/linux/sched.h:2217 kernel/sched/core.c:7013 kernel/sched/core.c:7026)
[ 1484.711248][ T1368] io_schedule (kernel/sched/core.c:7846 (discriminator 1) kernel/sched/core.c:7872 (discriminator 1))
[ 1484.715676][ T1368] folio_wait_bit_common (mm/filemap.c:1319)
[ 1484.721032][ T1368] ? find_get_entries (mm/filemap.c:2068 mm/filemap.c:2123)
[ 1484.726038][ T1368] ? __pfx_wake_page_function (mm/filemap.c:1141)
[ 1484.731629][ T1368] truncate_inode_pages_range (include/linux/pagemap.h:1141 mm/truncate.c:433)
[ 1484.737403][ T1368] blkdev_flush_mapping (block/bdev.c:49 block/bdev.c:66 block/bdev.c:713)
[ 1484.742491][ T1368] bdev_release (block/bdev.c:719 block/bdev.c:1144)
[ 1484.747051][ T1368] blkdev_release (block/fops.c:711)
[ 1484.751617][ T1368] __fput (fs/file_table.c:469 (discriminator 1))
[ 1484.755574][ T1368] task_work_run (include/linux/sched.h:2092 kernel/task_work.c:229)
[ 1484.760046][ T1368] do_exit (kernel/exit.c:967)
[ 1484.764160][ T1368] do_group_exit (kernel/exit.c:1089)
[ 1484.768627][ T1368] get_signal (kernel/signal.c:3034)
[ 1484.773015][ T1368] arch_do_signal_or_restart (arch/x86/include/asm/current.h:23 arch/x86/kernel/signal.c:258 arch/x86/kernel/signal.c:339)
[ 1484.778615][ T1368] exit_to_user_mode_loop (kernel/entry/common.c:42)
[ 1484.783961][ T1368] do_syscall_64 (include/linux/irq-entry-common.h:225 include/linux/entry-common.h:175 include/linux/entry-common.h:210 arch/x86/entry/syscall_64.c:100)
[ 1484.788612][ T1368] ? __cond_resched (kernel/sched/core.c:7477)
[ 1484.793347][ T1368] ? blkdev_llseek (block/fops.c:615)
[ 1484.797996][ T1368] ? __x64_sys_lseek (fs/read_write.c:389 fs/read_write.c:402 fs/read_write.c:412 fs/read_write.c:410 fs/read_write.c:410)
[ 1484.802823][ T1368] ? do_syscall_64 (arch/x86/include/asm/jump_label.h:36 include/linux/context_tracking_state.h:108 include/linux/context_tracking.h:41 include/linux/irq-entry-common.h:261 include/linux/entry-common.h:212 arch/x86/entry/syscall_64.c:100)
[ 1484.807556][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 1484.812294][ T1368] ? clear_bhb_loop (arch/x86/entry/entry_64.S:1548)
[ 1484.817026][ T1368] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1484.822970][ T1368] RIP: 0033:0x7f791bdd2687
[ 1484.827455][ T1368] RSP: 002b:00007ffc047ddce0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[ 1484.835923][ T1368] RAX: 0000000000009000 RBX: 00007f791b2f5980 RCX: 00007f791bdd2687
[ 1484.843955][ T1368] RDX: 0000000000040000 RSI: 00007f791a3fe000 RDI: 000000000000010d
[ 1484.851995][ T1368] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 1484.860031][ T1368] R10: 0000000000000000 R11: 0000000000000202 R12: 000055cb203abcf0
[ 1484.868079][ T1368] R13: 0000000000000000 R14: 000055cb203abd50 R15: 000055cb204e13d8
[ 1484.876130][ T1368] </TASK>
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20251031/202510311657.c2d98d1-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2025-10-31 9:10 UTC|newest]
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