[LU-16562] sanity test_408: aarch64 crash with NULL pointer dereference at virtual address 00000000000000a0

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Minor
• Labels: arm
• Severity: 3
• Assignee: WC Triage
• Reporter: Maloo

Description

This issue was created by maloo for Andreas Dilger <[e-mail]>

This issue relates to the following test suite runs (both aarch64 clients):
https://testing.whamcloud.com/test_sets/76f58da2-38d6-4961-a077-b0c64d6674b6
https://testing.whamcloud.com/test_sets/eeff3d31-fa01-4b09-9f15-6aa7a8e5f021

test_408 failed with the following error:

onyx-91vm11 crashed during sanity test_408

[19747.669390] Lustre: DEBUG MARKER: == sanity test 408: drop_caches should not hang due to page leaks ========================================================== 21:17:51 (1676409471)
[19747.880492] Lustre: *** cfs_fail_loc=40a, val=0***
[19747.884133] LustreError: 631631:0:(osc_request.c:2756:osc_build_rpc()) prep_req failed: -22
[19747.890192] LustreError: 631631:0:(osc_cache.c:2199:osc_check_rpcs()) Read request failed with -22
[19749.278274] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a0
[19749.282908] bash (1056941): drop_caches: 2
[19749.319912] Internal error: Oops: 96000005 [#1] SMP

[19749.356011] CPU: 0 PID: 1057184 Comm: ldlm_bl_06 Kdump: loaded 4.18.0-372.32.1.el8_6.aarch64 #1
[19749.365795] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
[19749.371401] pstate: 80000005 (Nzcv daif -PAN -UAO)
[19749.375217] pc : ll_lock_cancel_bits+0x7b0/0xfa0 [lustre]
[19749.379986] lr : ll_lock_cancel_bits+0x54/0xfa0 [lustre]
[19749.449339] Process ldlm_bl_06 (pid: 1057184, stack limit = 0x00000000b232b25f)
[19749.455034] Call trace:
[19749.456943]  ll_lock_cancel_bits+0x7b0/0xfa0 [lustre]
[19749.461172]  ll_md_blocking_ast+0x1d0/0x410 [lustre]
[19749.465320]  ldlm_cancel_callback+0x74/0x368 [ptlrpc]
[19749.470399]  ldlm_cli_cancel_local+0x100/0x7a8 [ptlrpc]
[19749.474833]  ldlm_cli_cancel_list_local+0x118/0x440 [ptlrpc]
[19749.479597]  ldlm_bl_thread_main+0x920/0xc60 [ptlrpc]
[19749.483892]  kthread+0x128/0x138

Test session details:
clients: https://build.whamcloud.com/job/lustre-reviews/92347 - 4.18.0-372.32.1.el8_6.aarch64
servers: https://build.whamcloud.com/job/lustre-reviews/92347 - 4.18.0-348.23.1.el8_lustre.x86_64

<<Please provide additional information about the failure here>>

VVVVVVV DO NOT REMOVE LINES BELOW, Added by Maloo for auto-association VVVVVVV
sanity test_408 - onyx-91vm11 crashed during sanity test_408