[LU-16917] osc_extent_make_ready()) ASSERTION( last_oap_count > 0 )

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Severity: 3
• Assignee: WC Triage
• Reporter: Alex Zhuravlev

Description

hit in racer: FSTYPE=ldiskfs MDSCOUNT=2 SLOW=yes DURATION=2700 MDSSIZE=250000 OSTSIZE=400000 OSTCOUNT=2 LOGDIR=/tmp/ltest-logs REFORMAT=yes HONOR_EXCEPT=y REFORMAT=yes bash racer.sh TAG=baseline

Trace:
PID: 83658  TASK: ffff8ac8e277c4c0  CPU: 2   COMMAND: "ldlm_bl_08"
 #0 [ffff8ac91207fa38] panic at ffffffff9a0b9786
    /tmp/kernel/kernel/panic.c: 299
 #1 [ffff8ac91207fab8] osc_extent_make_ready at ffffffffc0b0fb56 [osc]
    /home/lustre/master-mine/lustre/osc/osc_cache.c: 1114
 #2 [ffff8ac91207fb30] osc_io_unplug0 at ffffffffc0b11db0 [osc]
    /home/lustre/master-mine/lustre/osc/osc_cache.c: 2020
 #3 [ffff8ac91207fc08] osc_cache_writeback_range at ffffffffc0b18695 [osc]
    /home/lustre/master-mine/lustre/include/lustre_osc.h: 620
 #4 [ffff8ac91207fcd8] mdc_lock_flush at ffffffffc0bc7404 [mdc]
    /home/lustre/master-mine/libcfs/include/libcfs/libcfs_debug.h: 155
 #5 [ffff8ac91207fd20] mdc_dlm_canceling at ffffffffc0bc774f [mdc]
    /home/lustre/master-mine/lustre/mdc/mdc_dev.c: 350
 #6 [ffff8ac91207fd58] mdc_ldlm_blocking_ast at ffffffffc0bc7962 [mdc]
    /home/lustre/master-mine/lustre/mdc/mdc_dev.c: 401
 #7 [ffff8ac91207fd80] ldlm_cancel_callback at ffffffffc086932c [ptlrpc]
    /home/lustre/master-mine/lustre/ptlrpc/../../lustre/ldlm/ldlm_lock.c: 2481
 #8 [ffff8ac91207fdd0] ldlm_cli_cancel_local at ffffffffc0882346 [ptlrpc]
    /home/lustre/master-mine/lustre/ptlrpc/../../lustre/ldlm/ldlm_request.c: 1304
 #9 [ffff8ac91207fdf0] ldlm_cli_cancel at ffffffffc0887bf5 [ptlrpc]
    /home/lustre/master-mine/lustre/ptlrpc/../../lustre/ldlm/ldlm_request.c: 1662
#10 [ffff8ac91207fe50] mdc_ldlm_blocking_ast at ffffffffc0bc7945 [mdc]
    /home/lustre/master-mine/lustre/mdc/mdc_dev.c: 374
#11 [ffff8ac91207fe78] ldlm_handle_bl_callback at ffffffffc0892594 [ptlrpc]
    /home/lustre/master-mine/lustre/ptlrpc/../../lustre/ldlm/ldlm_lockd.c: 1950
#12 [ffff8ac91207fe98] ldlm_bl_thread_main at ffffffffc0892e4f [ptlrpc]
    /home/lustre/master-mine/lustre/ptlrpc/../../lustre/ldlm/ldlm_lockd.c: 2951
#13 [ffff8ac91207ff10] kthread at ffffffff9a0d5199
    /tmp/kernel/kernel/kthread.c: 340
#14 [ffff8ac91207ff50] ret_from_fork at ffffffff9a60019f
    /tmp/kernel/arch/x86/entry/entry_64.S: 325

[ 2657.197796] LustreError: 562887:0:(lov_object.c:192:lov_init_sub()) try to own.
[ 2658.294220] LustreError: 74849:0:(mdd_dir.c:4343:mdd_migrate_cmd_check()) lustre-MDD0000: '19' migration was interrupted, run 'lfs migrate -m 0 -c 2 -H crush 19' to finish migration.
[ 2658.310384] LustreError: 74849:0:(mdd_dir.c:4343:mdd_migrate_cmd_check()) Skipped 59 previous similar messages
[ 2660.428200] LustreError: 3053:0:(osc_request.c:1037:osc_init_grant()) lustre-OST0000-osc-ffff8ac959372000: granted 815104 but already consumed 2060288
[ 2660.433830] Lustre: 3057:0:(llite_lib.c:3926:ll_dirty_page_discard_warn()) lustre: dirty page discard: 192.168.121.76@tcp:/lustre/fid: [0x240000409:0x175b:0x0]/ may get corrupted (rc -5)
[ 2660.436271] Lustre: 3054:0:(llite_lib.c:3926:ll_dirty_page_discard_warn()) lustre: dirty page discard: 192.168.121.76@tcp:/lustre/fid: [0x240000409:0x1f73:0x0]/ may get corrupted (rc -5)
[ 2660.457702] Lustre: 3054:0:(llite_lib.c:3926:ll_dirty_page_discard_warn()) lustre: dirty page discard: 192.168.121.76@tcp:/lustre/fid: [0x24000040a:0x3d5:0x0]// may get corrupted (rc -5)
[ 2660.953804] LustreError: 83658:0:(osc_cache.c:1115:osc_extent_make_ready()) ASSERTION( last_oap_count > 0 ) failed: last_oap_count -61
[ 2660.955197] LustreError: 83658:0:(osc_cache.c:1115:osc_extent_make_ready()) LBUG
[ 2660.955269] Pid: 83658, comm: ldlm_bl_08 4.18.0 #2 SMP Sun Oct 23 17:58:04 UTC 2022

Issue Links

• is related to: LU-12511 Prepare lustre for adoption into the linux kernel