Public issue detail

Stuck D-state investigation for postgres at submit_bio_wait

postgres shows a repeated `D`-state wait, likely blocked in filesystem io wait via submit_bio_wait.

highpackage: postgresql-18source: postgresql-18score: 110reports: 1

Last seen: 2026-05-19 05:39 UTC. Public JSON: /v1/issues/019e3879-7c48-7ba2-afd2-1a81a967d8e4

Technical snapshot

This is where Fixer saw the sampled task blocked in the kernel.

Kernel wait stack

  • State: D (disk sleep)
  • Wait site: submit_bio_wait
  • Package: postgresql-18 18.4-1.pgdg+1
  • Kernel: 6.17.0-14-generic
  • Distribution: debian
submit_bio_wait
blkdev_issue_flush
ext4_sync_file
vfs_fsync_range
do_fsync
__x64_sys_fdatasync
x64_sys_call
do_syscall_64
entry_SYSCALL_64_after_hwframe

Possible duplicates

These are suggestions based on sanitized trigram similarity plus structured fields like package, subsystem, classification, and wait site. They are not auto-merged.

node shows a repeated `D`-state wait, likely blocked in filesystem io wait via submit_bio_wait.

highpackage: nodejssource: nodejsscore: 110reports: 1similarity: 99%

Why this looks related: same classification, same stack or hot path signature, same subsystem, same wait site, very similar public summary

Last seen: 2026-05-19 05:39 UTC. Public page: /issues/019dff8e-d7be-7e11-8278-28152dffe7cd. Public JSON: /v1/issues/019dff8e-d7be-7e11-8278-28152dffe7cd

postgres shows a repeated `D`-state wait, likely blocked in filesystem io wait via rq_qos_wait.

highpackage: postgresql-18source: postgresql-18score: 110reports: 1similarity: 99%

Why this looks related: same classification, same package, same source package, same subsystem, same target, very similar public summary

Last seen: 2026-05-13 10:40 UTC. Public page: /issues/019ded8a-fc30-7073-b4c8-d85d3e56ba6a. Public JSON: /v1/issues/019ded8a-fc30-7073-b4c8-d85d3e56ba6a

badblocks shows a repeated `D`-state wait, likely blocked in filesystem io wait via submit_bio_wait.

highpackage: e2fsprogssource: e2fsprogsscore: 110reports: 1similarity: 99%

Why this looks related: same classification, same stack or hot path signature, same subsystem, same wait site, very similar public summary

Last seen: 2026-05-10 06:22 UTC. Public page: /issues/019e0362-59b0-7d61-b06b-aea7adab8fc4. Public JSON: /v1/issues/019e0362-59b0-7d61-b06b-aea7adab8fc4

fstrim shows a repeated `D`-state wait, likely blocked in filesystem io wait via submit_bio_wait.

highpackage: util-linuxsource: util-linuxscore: 110reports: 1similarity: 99%

Why this looks related: same classification, same stack or hot path signature, same subsystem, same wait site, very similar public summary

Last seen: 2026-05-08 08:33 UTC. Public page: /issues/019d3b87-bcb5-76e1-85d3-9b0bcb323a12. Public JSON: /v1/issues/019d3b87-bcb5-76e1-85d3-9b0bcb323a12

postgres shows a repeated `D`-state wait, likely blocked in mount io wait via an unknown wait point.

highpackage: postgresql-18source: postgresql-18score: 110reports: 1similarity: 91%

Why this looks related: same package, same source package, same subsystem, same target

Last seen: 2026-05-19 05:45 UTC. Public page: /issues/019dd5b0-6d0f-7ce0-9409-e63d14f9bb97. Public JSON: /v1/issues/019dd5b0-6d0f-7ce0-9409-e63d14f9bb97

Published attempts

No public attempts have been published for this issue yet.