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  1. Lustre
  2. LU-15808

ptlrpc lockdep warning "do not call blocking ops when !TASK_RUNNING"

Details

    • 3
    • 9223372036854775807

    Description

      Saw a lockdep warning in Gerrit Janitor client console logs when running runtests:

      http://testing.linuxhacker.ru:3333/lustre-reports/22787/results.html
      http://testing.linuxhacker.ru:3333/lustre-reports/22787/testresults/runtests-rhel8-zfs-rhel8.5_x86_64-rhel8.5_x86_64/
      http://testing.linuxhacker.ru:3333/lustre-reports/22787/testresults/runtests-rhel8-zfs-rhel8.5_x86_64-rhel8.5_x86_64/oleg240-client-console.txt

      [  272.868594] do not call blocking ops when !TASK_RUNNING; state=1 set at [<000000007e590e9d>] prepare_to_wait_event+0xc9/0x2a0
[  272.870611] WARNING: CPU: 1 PID: 4916 at kernel/sched/core.c:6733 __might_sleep+0xa3/0xc0
[  272.877791] CPU: 1 PID: 4916 Comm: mount.lustre Kdump: loaded Tainted: G           O     --------- -  - 4.18.0rh8.5-debug #2
[  272.879551] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  272.880475] RIP: 0010:__might_sleep+0xa3/0xc0
272.894276] Call Trace:
[  272.894639]  slab_pre_alloc_hook.constprop.45+0x12d/0x1f0
[  272.895479]  __kmalloc+0x8b/0x3d0
[  272.897379]  null_alloc_repbuf+0x172/0x340 [ptlrpc]
[  272.898261]  sptlrpc_cli_alloc_repbuf+0x1fe/0x290 [ptlrpc]
[  272.899160]  ptl_send_rpc+0x131b/0x1a10 [ptlrpc]
[  272.902503]  ptlrpc_check_set+0x279f/0x2f80 [ptlrpc]
[  272.903480]  ptlrpc_set_wait+0x6ef/0xae0 [ptlrpc]
[  272.905053]  ptlrpc_queue_wait+0xb4/0x2e0 [ptlrpc]
[  272.905939]  ldlm_cli_enqueue+0x633/0xda0 [ptlrpc]
[  272.908533]  mgc_enqueue.isra.10.constprop.18+0x2ab/0x470 [mgc]
[  272.911159]  mgc_process_log+0x123/0xb60 [mgc]
[  272.913066]  do_config_log_add+0x5dd/0x720 [mgc]
[  272.913717]  config_log_find_or_add+0xbc/0x100 [mgc]
[  272.915555]  config_log_add+0x535/0xc90 [mgc]
[  272.916238]  mgc_process_config+0xb74/0x1490 [mgc]
[  272.916997]  lustre_process_log+0x7d4/0xda0 [obdclass]
[  272.920469]  ll_fill_super+0x906/0x14a0 [lustre]
[  272.922096]  lustre_fill_super+0xe8/0x560 [lustre]
[  272.923625]  mount_nodev+0x58/0x100
[  272.924201]  lustre_mount+0x1c/0x30 [lustre]
[  272.924893]  legacy_get_tree+0x38/0x90
[  272.925506]  vfs_get_tree+0x30/0x140
[  272.926118]  do_mount+0xcad/0x10b0
[  272.926658]  ksys_mount+0x11d/0x150
[  272.927271]  __x64_sys_mount+0x29/0x40
[  272.927871]  do_syscall_64+0xd4/0x5a0
[  272.928493]  entry_SYSCALL_64_after_hwframe+0x6a/0xdf

[  272.943745] irq event stamp: 44536
[  272.944345] hardirqs last  enabled at (44535): [<ffffffff81250ce4>] ktime_get_real_ts64+0x224/0x2e0
[  272.946562] hardirqs last disabled at (44536): [<ffffffff820e4df2>] __schedule+0x8b2/0xe50
[  272.949759] softirqs last  enabled at (40638): [<ffffffff81d4a7ae>] sk_common_release+0x8e/0x190
[  272.952854] softirqs last disabled at (40636): [<ffffffff81d4a77a>] sk_common_release+0x5a/0x190

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          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-16807 Resolve newer debug kernel warnings

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Reopened

          Activity

            [LU-15808] ptlrpc lockdep warning "do not call blocking ops when !TASK_RUNNING"
            gerrit Gerrit Updater added a comment -

            "Olaf Faaland <faaland1@llnl.gov>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/59261
            Subject: LU-15808 ptlrpc: ptlrpc_set_wait() use wait_woken
            Project: fs/lustre-release
            Branch: b2_16
            Current Patch Set: 1
            Commit: 3ca86a83cf7777585952df4b3598134013de810a

            gerrit Gerrit Updater added a comment - "Olaf Faaland <faaland1@llnl.gov>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/59261 Subject: LU-15808 ptlrpc: ptlrpc_set_wait() use wait_woken Project: fs/lustre-release Branch: b2_16 Current Patch Set: 1 Commit: 3ca86a83cf7777585952df4b3598134013de810a
            gerrit Gerrit Updater added a comment -

            "Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/59108/
            Subject: LU-15808 ptlrpc: ptlrpc_set_wait() use wait_woken
            Project: fs/lustre-release
            Branch: b2_15
            Current Patch Set:
            Commit: 4fd6de9b01beef0ca9ea7aa3a9e042479c6cb4b4

            gerrit Gerrit Updater added a comment - "Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/59108/ Subject: LU-15808 ptlrpc: ptlrpc_set_wait() use wait_woken Project: fs/lustre-release Branch: b2_15 Current Patch Set: Commit: 4fd6de9b01beef0ca9ea7aa3a9e042479c6cb4b4
            gerrit Gerrit Updater added a comment -

            "Olaf Faaland <faaland1@llnl.gov>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/59108
            Subject: LU-15808 ptlrpc: ptlrpc_set_wait() use wait_woken
            Project: fs/lustre-release
            Branch: b2_15
            Current Patch Set: 1
            Commit: b4ebd58e7cb3866752ac5a34edeea4fef58e089d

            gerrit Gerrit Updater added a comment - "Olaf Faaland <faaland1@llnl.gov>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/59108 Subject: LU-15808 ptlrpc: ptlrpc_set_wait() use wait_woken Project: fs/lustre-release Branch: b2_15 Current Patch Set: 1 Commit: b4ebd58e7cb3866752ac5a34edeea4fef58e089d
            pjones Peter Jones added a comment -

            Merged for 2.17

            pjones Peter Jones added a comment - Merged for 2.17
            gerrit Gerrit Updater added a comment -

            "Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/56317/
            Subject: LU-15808 ptlrpc: ptlrpc_set_wait() use wait_woken
            Project: fs/lustre-release
            Branch: master
            Current Patch Set:
            Commit: 930ad25733d925021fbce468568acacde219d67c

            gerrit Gerrit Updater added a comment - "Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/56317/ Subject: LU-15808 ptlrpc: ptlrpc_set_wait() use wait_woken Project: fs/lustre-release Branch: master Current Patch Set: Commit: 930ad25733d925021fbce468568acacde219d67c
            gerrit Gerrit Updater added a comment -

            "Shaun Tancheff <shaun.tancheff@hpe.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/56317
            Subject: LU-15808 ptlrpc: ptlrpc_set_wait() use wait_woken
            Project: fs/lustre-release
            Branch: master
            Current Patch Set: 1
            Commit: d385def02f924d63b0d4a1af7cc78b9db9d13f1f

            gerrit Gerrit Updater added a comment - "Shaun Tancheff <shaun.tancheff@hpe.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/56317 Subject: LU-15808 ptlrpc: ptlrpc_set_wait() use wait_woken Project: fs/lustre-release Branch: master Current Patch Set: 1 Commit: d385def02f924d63b0d4a1af7cc78b9db9d13f1f
            gerrit Gerrit Updater added a comment - - edited

            Abandoned:

            "Shaun Tancheff <shaun.tancheff@hpe.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/56279
            Subject: LU-15808 ptlrpc: wait condition should not sleep
            Project: fs/lustre-release
            Branch: master
            Current Patch Set: 1
            Commit: 469fae18326f2e93832c568c668902838bd03b60

            gerrit Gerrit Updater added a comment - - edited Abandoned: "Shaun Tancheff <shaun.tancheff@hpe.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/56279 Subject: LU-15808 ptlrpc: wait condition should not sleep Project: fs/lustre-release Branch: master Current Patch Set: 1 Commit: 469fae18326f2e93832c568c668902838bd03b60
            gerrit Gerrit Updater added a comment - - edited

            Abandoned:

            "Shaun Tancheff <shaun.tancheff@hpe.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/55586
            Subject: LU-15808 ptlrpc: wait condition should not sleep
            Project: fs/lustre-release
            Branch: master
            Current Patch Set: 1
            Commit: 914019fa88d68c93fa44400e46d274d8f7671739

            gerrit Gerrit Updater added a comment - - edited Abandoned: "Shaun Tancheff <shaun.tancheff@hpe.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/55586 Subject: LU-15808 ptlrpc: wait condition should not sleep Project: fs/lustre-release Branch: master Current Patch Set: 1 Commit: 914019fa88d68c93fa44400e46d274d8f7671739

            People

              stancheff Shaun Tancheff
              adilger Andreas Dilger
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                Updated:
                Resolved: