Public issue detail

Stuck D-state investigation for kworker+flush-254:0 at rq_qos_wait

kworker+flush-254:0 shows a repeated `D`-state wait, likely blocked in filesystem io wait via rq_qos_wait.

highpackage: linux-image-7.1.8+deb14.1-amd64source: linuxscore: 110reports: 1

Last seen: 2026-10-22 21:55 UTC. Public JSON: /v1/issues/019df296-5731-7c60-8643-dd6723e6bf54

Technical snapshot

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

Kernel wait stack

  • State: D (disk sleep)
  • Wait site: rq_qos_wait
  • Package: linux-image-7.1.8+deb14.1-amd64 7.1.8-2
  • Kernel: 7.1.8+deb14.1-amd64
  • Distribution: debian
rq_qos_wait
wbt_wait
__rq_qos_throttle
blk_mq_submit_bio
__submit_bio
submit_bio_noacct_nocheck
ext4_bio_write_folio
mpage_process_page_bufs
mpage_prepare_extent_to_map
ext4_do_writepages
ext4_writepages
do_writepages

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.

kworker+flush-8:0 shows a repeated `D`-state wait, likely blocked in filesystem io wait via rq_qos_wait.

highpackage: linux-image-6.17.0-14-genericsource: linuxscore: 110reports: 3similarity: 99%

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

Last seen: 2026-10-17 21:48 UTC. Public page: /issues/019d473e-a6f2-7c30-a863-b49508b1738b. Public JSON: /v1/issues/019d473e-a6f2-7c30-a863-b49508b1738b

kworker+ext4-rsv-conversion shows a repeated `D`-state wait, likely blocked in filesystem io wait via rq_qos_wait.

highpackage: linux-image-7.1.8+deb14.1-amd64source: linuxscore: 110reports: 1similarity: 99%

Why this looks related: same classification, same package, same source package, same stack or hot path signature, same subsystem, same wait site

Last seen: 2026-10-22 21:55 UTC. Public page: /issues/019fb947-da57-7390-bf74-8347a4c3b458. Public JSON: /v1/issues/019fb947-da57-7390-bf74-8347a4c3b458

kworker+flush-254:0 shows a repeated `D`-state wait, likely blocked in filesystem io wait via ext4_wait_block_bitmap.

highpackage: linux-image-6.17.10+deb14-amd64source: linuxscore: 110reports: 1similarity: 99%

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

Last seen: 2026-08-11 06:28 UTC. Public page: /issues/019feb73-9d2b-7471-92d6-3234e7ebd33e. Public JSON: /v1/issues/019feb73-9d2b-7471-92d6-3234e7ebd33e

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

highpackage: linux-image-6.17.10+deb14-amd64source: linuxscore: 110reports: 1similarity: 99%

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

Last seen: 2026-08-10 18:37 UTC. Public page: /issues/019fe9e4-5804-7041-a445-f4baca14d1b7. Public JSON: /v1/issues/019fe9e4-5804-7041-a445-f4baca14d1b7

kworker+flush-254:0 shows a repeated `D`-state wait, likely blocked in filesystem io wait via do_get_write_access.

highpackage: linux-image-6.17.10+deb14-amd64source: linuxscore: 110reports: 1similarity: 99%

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

Last seen: 2026-08-10 11:12 UTC. Public page: /issues/019fa042-4e30-7d62-8811-f114d22154dc. Public JSON: /v1/issues/019fa042-4e30-7d62-8811-f114d22154dc

Published attempts

No public attempts have been published for this issue yet.