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INFO: task hung in __bio_queue_enter

Status: auto-obsoleted due to no activity on 2024/07/31 16:15
Subsystems: block
[Documentation on labels]
First crash: 278d, last: 256d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task can't die in __bio_queue_enter block 185 1178d 1186d 20/28 fixed on 2022/03/08 16:11

Sample crash report:
INFO: task udevd:5130 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc1-next-20240531-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D
 stack:24432 pid:5130  tgid:5130  ppid:4546   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5192 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6621
 __bio_queue_enter+0x34b/0x690 block/blk-core.c:359
 bio_queue_enter block/blk.h:73 [inline]
 blk_mq_submit_bio+0xbfb/0x2170 block/blk-mq.c:2965
 __submit_bio+0x1c1/0x560 block/blk-core.c:627
 __submit_bio_noacct_mq block/blk-core.c:708 [inline]
 submit_bio_noacct_nocheck+0x4d3/0xe30 block/blk-core.c:737
 mpage_bio_submit_read fs/mpage.c:82 [inline]
 mpage_readahead+0x7da/0x930 fs/mpage.c:384
 read_pages+0x17e/0x840 mm/readahead.c:160
 page_cache_ra_unbounded+0x6ce/0x7f0 mm/readahead.c:273
 do_page_cache_ra mm/readahead.c:303 [inline]
 force_page_cache_ra+0x2a7/0x310 mm/readahead.c:334
 page_cache_sync_readahead include/linux/pagemap.h:1285 [inline]
 filemap_get_pages+0x49d/0x2090 mm/filemap.c:2529
 filemap_read+0x457/0xfa0 mm/filemap.c:2625
 blkdev_read_iter+0x2df/0x440 block/fops.c:749

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/01 16:13 linux-next 0e1980c40b6e 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in __bio_queue_enter
2024/05/11 06:32 linux-next 75fa778d74b7 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in __bio_queue_enter
* Struck through repros no longer work on HEAD.