[LU-17625] LustreError: 1386791:0:(statahead.c:2174:start_statahead_thread()) can't start ll_sa thread, rc: -4

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Qian Yingjin
• Reporter: Maloo

Description

This issue was created by maloo for James Simmons <[e-mail]>

This issue relates to the following test suite run: https://testing.whamcloud.com/test_sets/09916d1f-07c5-41ca-b70e-8585e94198a6

Test session details:
clients: https://build.whamcloud.com/job/lustre-reviews/102871 - 4.18.0-477.27.1.el8_8.x86_64
servers: https://build.whamcloud.com/job/lustre-reviews/102871 - 4.18.0-477.27.1.el8_lustre.x86_64

Several test are failing with

 Lustre: DEBUG MARKER: == sanity test 350: force NID mismatch path to be exercised === 22:25:44 (1713047144)
 LustreError: 1182847:0:(statahead.c:2175:start_statahead_thread()) can't start ll_sa thread, rc: -4
 BUG: unable to handle kernel paging request at ffffffffbb3e5f40
 Oops: 0002 [#1] SMP PTI
 CPU: 0 PID: 1182864 Comm: rm  4.18.0-513.18.1.el8_9.x86_64 #1
 RIP: 0010:__pv_queued_spin_lock_slowpath+0x19e/0x2a0
 Call Trace:
  _raw_spin_lock+0x1e/0x30
  revalidate_statahead_dentry+0x11f/0xca0 [lustre]
  ll_revalidate_statahead+0x75/0x2a0 [lustre]
  ll_revalidate_dentry+0xda/0x210 [lustre]
  lookup_dcache+0x3f/0x60
  __lookup_hash+0x1f/0xa0
  do_unlinkat+0x156/0x300
  do_syscall_64+0x5b/0x1b0