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  1. Lustre
  2. LU-19709

LBUG on (osc_cache.c:735:osc_extent_find()) ASSERTION( *grants >= chunksize + cli->cl_grant_extent_tax )

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Details

    • Bug
    • Resolution: Unresolved
    • Medium
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      customer hit the following LBUG on a client :

      [414159.619974] LustreError: 677034:0:(osc_cache.c:735:osc_extent_find()) ASSERTION( *grants >= chunksize + cli->cl_grant_extent_tax ) failed: 0/4096/24576.
      [414159.635425] LustreError: 677034:0:(osc_cache.c:735:osc_extent_find()) LBUG
      [414159.643267] CPU: 106 PID: 677034 Comm: rsync Tainted: G OE X ------- — 5.14.0-427.96.1.el9_4.x86_64 #1
      [414159.655384] Hardware name: Lenovo ThinkSystem SR645 V3/SB27B75428, BIOS KAE120J-4.20 06/14/2024
      [414159.665255] Call Trace:
      [414159.668108] <TASK>
      [414159.670560] dump_stack_lvl+0x34/0x48
      [414159.674778] lbug_with_loc.cold+0x5/0x43 [libcfs]
      [414159.680182] osc_extent_find+0x1746/0x1ed0 [osc]
      [414159.685478] ? srso_alias_return_thunk+0x5/0xfbef5
      [414159.690968] ? srso_alias_return_thunk+0x5/0xfbef5
      [414159.696452] ? __wake_up+0x40/0x60^M
      [414159.700380] osc_queue_async_io+0x612/0x1540 [osc]
      [414159.705880] ? srso_alias_return_thunk+0x5/0xfbef5
      [414159.711358] ? rmqueue+0x7d3/0xd40
      [414159.715285] ? srso_alias_return_thunk+0x5/0xfbef5
      [414159.720768] ? __pfx_write_commit_callback+0x10/0x10 [lustre]
      [414159.727355] osc_page_cache_add+0x5c/0x180 [osc]
      [414159.732658] osc_io_commit_async+0x256/0x540 [osc]
      [414159.738156] ? __pfx_write_commit_callback+0x10/0x10 [lustre]
      [414159.744737] ? __pfx_write_commit_callback+0x10/0x10 [lustre]
      [414159.751318] cl_io_commit_async+0x7e/0x140 [obdclass]
      [414159.757138] lov_io_commit_async+0x201/0x770 [lov]
      [414159.762630] ? __pfx_write_commit_callback+0x10/0x10 [lustre]
      [414159.769215] ? __pfx_write_commit_callback+0x10/0x10 [lustre]
      [414159.775794] cl_io_commit_async+0x7e/0x140 [obdclass]
      [414159.781609] vvp_io_write_commit+0x162/0x650 [lustre]
      [414159.787415] ll_write_end+0x41f/0x850 [lustre]
      [414159.792537] generic_perform_write+0x108/0x200
      [414159.797640] __generic_file_write_iter+0xe5/0x1b0
      [414159.803030] vvp_io_write_start+0x528/0xdf0 [lustre]
      [414159.808755] cl_io_start+0x5a/0x110 [obdclass]
      [414159.813892] cl_io_loop+0x97/0x1f0 [obdclass]
      [414159.818945] ll_file_io_generic+0x506/0xf20 [lustre]
      [414159.824651] ? __entry_text_end+0x102688/0x10268c
      [414159.830043] do_file_write_iter+0x429/0x670 [lustre]
      [414159.835736] ? srso_alias_return_thunk+0x5/0xfbef5
      [414159.841215] ? selinux_file_permission+0x108/0x150
      [414159.846703] vfs_write+0x2d2/0x410

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            qian_wc Qian Yingjin
            qian_wc Qian Yingjin
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              Created:
              Updated: