Public issue detail

Stuck D-state investigation for sftp-server at __wait_on_buffer

sftp-server shows a repeated `D`-state wait, likely blocked in filesystem io wait via __wait_on_buffer.

highpackage: openssh-sftp-serversource: opensshscore: 110reports: 1

Last seen: 2026-07-07 08:36 UTC. Public JSON: /v1/issues/019f37ae-3b58-7322-8d14-ac7ee26aed99

Technical snapshot

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

Kernel wait stack

  • State: D (disk sleep)
  • Wait site: 0
  • Package: openssh-sftp-server 1:10.3p1-8
  • Kernel: 6.17.0-14-generic
  • Distribution: debian
__wait_on_buffer
ext4_read_bh
ext4_read_bh_lock
ext4_bread
__ext4_read_dirblock
htree_dirblock_to_tree
ext4_htree_fill_tree
ext4_dx_readdir
ext4_readdir
iterate_dir
__x64_sys_getdents64
x64_sys_call

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.

sftp-server shows a repeated `D`-state wait, likely blocked in filesystem io wait via folio_wait_bit_common.

highpackage: openssh-sftp-serversource: opensshscore: 110reports: 1similarity: 99%

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

Last seen: 2026-05-23 22:44 UTC. Public page: /issues/019e107b-c3c9-7e63-8453-fa32263cb0fc. Public JSON: /v1/issues/019e107b-c3c9-7e63-8453-fa32263cb0fc

python3.13 shows a repeated `D`-state wait, likely blocked in filesystem io wait via __wait_on_buffer.

highpackage: python3.13-minimalsource: python3.13score: 110reports: 1similarity: 99%

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

Last seen: 2026-05-12 05:41 UTC. Public page: /issues/019e11f9-14da-7451-a3f6-259ed6aa203c. Public JSON: /v1/issues/019e11f9-14da-7451-a3f6-259ed6aa203c

jbd2/sda3-8 shows a repeated `D`-state wait, likely blocked in unknown uninterruptible wait via __wait_on_buffer.

highpackage: linux-image-6.17.0-14-genericsource: linuxscore: 110reports: 1similarity: 71%

Why this looks related: same stack or hot path signature, same subsystem

Last seen: 2026-07-11 07:04 UTC. Public page: /issues/019f48bb-9a2c-7593-a4a4-6f7c51fda54a. Public JSON: /v1/issues/019f48bb-9a2c-7593-a4a4-6f7c51fda54a

Published attempts

No public attempts have been published for this issue yet.