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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">Hi All,</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">Sending it once again, in case we all missed this earlier mail,</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">Any help is much appreciated.</span></p><p class="MsoNormal"><span style="color:#1f497d">This bug hangs the mount with the following stack. Similar to (</span><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black"><a href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1382801"><span style="color:black;text-decoration:none">https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1382801</span></a>)</span><span style="color:#1f497d"></span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">root@zios-vsa-00000253-vc-0:~# cat /proc/26511/task/26511/stack</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffffc0776c69>] xfs_ail_push_all_sync+0xa9/0xe0 [xfs]</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffffc076c2e7>] xfs_log_quiesce+0x37/0x70 [xfs]</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffffc076c33a>] xfs_log_unmount+0x1a/0x70 [xfs]</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffffc0760845>] xfs_mountfs+0x5e5/0x7b0 [xfs]</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffffc0763fca>] xfs_fs_fill_super+0x2ca/0x360 [xfs]</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffff811eb220>] mount_bdev+0x1b0/0x1f0</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffffc0761c95>] xfs_fs_mount+0x15/0x20 [xfs]</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffff811ebb79>] mount_fs+0x39/0x1b0</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffff812070db>] vfs_kern_mount+0x6b/0x120</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffff8120a032>] do_mount+0x222/0xca0</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffff8120adab>] SyS_mount+0x8b/0xe0</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffff817179cd>] system_call_fastpath+0x16/0x1b</span></p><p class="MsoNormal"><span style="color:#1f497d">[<ffffffffffffffff>] 0xffffffffffffffff</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">Is this a known issue ? otherwise how to avoid the hang, a mount failure will help to force-repair the filesystem and remount.</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">Thanks</span></p><p class="MsoNormal"><span style="color:#1f497d">-kiru</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Kirubakaran Kaliannan [mailto:<a href="mailto:kirubak@zadarastorage.com">kirubak@zadarastorage.com</a>] <br><b>Sent:</b> Wednesday, June 29, 2016 11:25 AM<br><b>To:</b> '<a href="mailto:xfs@oss.sgi.com">xfs@oss.sgi.com</a>'<br><b>Subject:</b> xfs mount hung on a corrupted filesystem</span></p></div></div><p class="MsoNormal"> </p><p class="MsoNormal"> </p><p class="MsoNormal">Hi XFS-developers,</p><p class="MsoNormal"> </p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">We are running XFS on ubuntu kernel-3.18.19</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black"> </span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">On a drive failure connected to my server, the file-system experienced the corruption. Attached the corruption.out file which contains the information regarding the corruption.</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black"> </span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">Later when the file-system is unmounted and mounted back, the mount hung with the following stack (attached the dmesg when mount is run)</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black"> </span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">------------------</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.093909] [<ffffffff81710c85>] dump_stack+0x4e/0x71</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.093943] [<ffffffffc07ff68e>] xfs_error_report+0x3e/0x40 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.093964] [<ffffffffc07beccc>] ? xfs_free_extent+0x10c/0x170 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.093984] [<ffffffffc07bd45f>] xfs_free_ag_extent.constprop.13+0x20f/0x980 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094012] [<ffffffffc07be4cf>] ? xfs_alloc_fix_freelist+0x4af/0x510 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094070] [<ffffffffc07beccc>] xfs_free_extent+0x10c/0x170 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094120] [<ffffffffc0827da5>] xlog_recover_process_efi+0x175/0x1b0 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094180] [<ffffffffc0829ed4>] xlog_recover_process_efis.isra.27+0x64/0xb0 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094227] [<ffffffffc082d181>] xlog_recover_finish+0x21/0xb0 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094271] [<ffffffffc0821204>] xfs_log_mount_finish+0x34/0x50 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094317] [<ffffffffc0817769>] xfs_mountfs+0x509/0x7b0 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094359] [<ffffffffc081afca>] xfs_fs_fill_super+0x2ca/0x360 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094369] [<ffffffff811eb220>] mount_bdev+0x1b0/0x1f0</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094406] [<ffffffffc081ad00>] ? xfs_parseargs+0xbe0/0xbe0 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094443] [<ffffffffc0818c95>] xfs_fs_mount+0x15/0x20 [xfs]</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094452] [<ffffffff811ebb79>] mount_fs+0x39/0x1b0</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094460] [<ffffffff81192fc5>] ? __alloc_percpu+0x15/0x20</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094472] [<ffffffff812070db>] vfs_kern_mount+0x6b/0x120</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094479] [<ffffffff8120a032>] do_mount+0x222/0xca0</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094486] [<ffffffff8120adab>] SyS_mount+0x8b/0xe0</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094495] [<ffffffff817179cd>] system_call_fastpath+0x16/0x1b</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.094512] XFS (dm-56): Failed to recover EFIs</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">[ 3611.095813] XFS (dm-56): log mount finish failed</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">-----------</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black"> </span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">My initial analysis shows, exactly the issue is same as in (but expired)</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black"><a href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1382801"><span style="color:black;text-decoration:none">https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1382801</span></a> </span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black"> </span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">filesystem getting corrupted is the first problem. But the mount hang instead of failing is making it difficult to repair the filesystem.</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black"> </span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">Can you please help progress on this issue ?</span></p><p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Comic Sans MS";color:black">I have the metadump of the filesystem, and can provide any details required.</span></p><p class="MsoNormal"> </p><p class="MsoNormal">Thanks</p><p class="MsoNormal">-kiru</p></div></body></html>