https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-2723 Lustre <p>PID: 6774 TASK: ffff8803fc62e0c0 CPU: 1 COMMAND: "fsx-linux-aio"<br/> #0 <span class="error">&#91;ffff8803de9334e8&#93;</span> schedule at ffffffff8141e405<br/> #1 <span class="error">&#91;ffff8803de9335c0&#93;</span> cfs_waitq_wait at ffffffffa01a66ee <span class="error">&#91;libcfs&#93;</span><br/> #2 <span class="error">&#91;ffff8803de9335d0&#93;</span> osc_extent_wait at ffffffffa0725aec <span class="error">&#91;osc&#93;</span><br/> #3 <span class="error">&#91;ffff8803de933740&#93;</span> osc_cache_wait_range at ffffffffa0726167 <span class="error">&#91;osc&#93;</span><br/> #4 <span class="error">&#91;ffff8803de9338d0&#93;</span> osc_io_fsync_end at ffffffffa0717a79 <span class="error">&#91;osc&#93;</span><br/> #5 <span class="error">&#91;ffff8803de933910&#93;</span> cl_io_end at ffffffffa03048b2 <span class="error">&#91;obdclass&#93;</span><br/> #6 <span class="error">&#91;ffff8803de933940&#93;</span> lov_io_end_wrapper at ffffffffa07c26f9 <span class="error">&#91;lov&#93;</span><br/> #7 <span class="error">&#91;ffff8803de933960&#93;</span> lov_io_fsync_end at ffffffffa07c407b <span class="error">&#91;lov&#93;</span><br/> #8 <span class="error">&#91;ffff8803de933990&#93;</span> cl_io_end at ffffffffa03048b2 <span class="error">&#91;obdclass&#93;</span><br/> #9 <span class="error">&#91;ffff8803de9339c0&#93;</span> cl_io_loop at ffffffffa0308c4a <span class="error">&#91;obdclass&#93;</span><br/> #10 <span class="error">&#91;ffff8803de9339f0&#93;</span> cl_sync_file_range at ffffffffa08aacbb <span class="error">&#91;lustre&#93;</span><br/> #11 <span class="error">&#91;ffff8803de933a60&#93;</span> ll_writepages at ffffffffa08d0164 <span class="error">&#91;lustre&#93;</span><br/> #12 <span class="error">&#91;ffff8803de933aa0&#93;</span> do_writepages at ffffffff810cd631<br/> #13 <span class="error">&#91;ffff8803de933ab0&#93;</span> __filemap_fdatawrite_range at ffffffff810c5b65<br/> #14 <span class="error">&#91;ffff8803de933b10&#93;</span> filemap_write_and_wait_range at ffffffff810c5bca<br/> #15 <span class="error">&#91;ffff8803de933b40&#93;</span> generic_file_buffered_write at ffffffff810c5e23<br/> #16 <span class="error">&#91;ffff8803de933c10&#93;</span> __generic_file_aio_write at ffffffff810c6d37<br/> #17 <span class="error">&#91;ffff8803de933cc0&#93;</span> generic_file_aio_write at ffffffff810c6e42<br/> #18 <span class="error">&#91;ffff8803de933d00&#93;</span> vvp_io_write_start at ffffffffa08fd4f6 <span class="error">&#91;lustre&#93;</span><br/> #19 <span class="error">&#91;ffff8803de933d40&#93;</span> cl_io_start at ffffffffa0304a1a <span class="error">&#91;obdclass&#93;</span><br/> #20 <span class="error">&#91;ffff8803de933d70&#93;</span> cl_io_loop at ffffffffa0308c3c <span class="error">&#91;obdclass&#93;</span><br/> #21 <span class="error">&#91;ffff8803de933da0&#93;</span> ll_file_io_generic at ffffffffa08a9cc5 <span class="error">&#91;lustre&#93;</span><br/> #22 <span class="error">&#91;ffff8803de933e10&#93;</span> ll_file_aio_write at ffffffffa08aa01b <span class="error">&#91;lustre&#93;</span><br/> #23 <span class="error">&#91;ffff8803de933e60&#93;</span> aio_rw_vect_retry at ffffffff811426d4<br/> #24 <span class="error">&#91;ffff8803de933e90&#93;</span> aio_run_iocb at ffffffff81143ffa<br/> #25 <span class="error">&#91;ffff8803de933ec0&#93;</span> sys_io_submit at ffffffff81144e38<br/> #26 <span class="error">&#91;ffff8803de933f80&#93;</span> system_call_fastpath at ffffffff8100305b<br/> RIP: 00007f7f5d49a6f7 RSP: 00007fff771a51a8 RFLAGS: 00010217<br/> RAX: 00000000000000d1 RBX: ffffffff8100305b RCX: 00000000000000e2<br/> RDX: 00007fff771a5150 RSI: 0000000000000001 RDI: 00007f7f5d8b0000<br/> RBP: 0000000000001000 R8: 0000000000000000 R9: 0000000000000003<br/> R10: 000000000000000f R11: 0000000000000202 R12: 00007fff771a5600<br/> R13: 0000000000404658 R14: 0000000000001000 R15: 0000000000001000<br/> ORIG_RAX: 00000000000000d1 CS: 0033 SS: 002b</p> LU-2723

a client hangs forever in osc_extent_wait() on directio

Bug Minor Resolved Fixed WC Triage Vitaly Fertman patch Thu, 31 Jan 2013 07:46:10 +0000 Tue, 23 Apr 2013 16:46:56 +0000 Tue, 5 Feb 2013 12:33:43 +0000 Lustre 2.4.0 Lustre 2.4.0 0 3 <p>If dio overlaps with mapped region, first overlapped pages are sent by generic_file_direct_write-&gt;filemap_write_and_wait_range-&gt;writepages. After that the dio pages are sent by write_begin/write_end, writepages.<br/> However, write_end-&gt;osc_page_cache_add does not release extent because the IO is not considered as synchronous. as the result, the following writepages-&gt;osc_cache_writeback_range() does not send pages are the extent is still ACTIVE and osc_cache_wait_range() hangs forever.</p> <p><a href="http://review.whamcloud.com/5224" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/5224</a></p> <p>Landed for 2.4</p> Duplicate LU-2643 Development Rank 1|hzvibj: Rank (Obsolete) 6617 Severity