<div dir="ltr"><div class="markdown-here-wrapper" style=""><p style="margin:0px 0px 1.2em!important">Hi Folks, </p>
<p style="margin:0px 0px 1.2em!important">As the results of 32 disks with <code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);border-radius:3px;display:inline;background-color:rgb(248,248,248)">xfs_repair -n</code> seems no any error shows up.<br>We currently tried to deploy CentOS 6.6 for testing. (The previous kernel panic was came from Ubuntu).<br>The CentOS nodes encountered kernel panic with same daemon but the problem may a bit differ. </p>
<ul style="margin:1.2em 0px;padding-left:2em">
<li style="margin:0.5em 0px">It was broken on <code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);border-radius:3px;display:inline;background-color:rgb(248,248,248)">xfs_dir2_sf_get_parent_ino+0xa/0x20</code> in Ubuntu. </li>
<li style="margin:0.5em 0px">Here’s the log in CentOS. It’s broken on <code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);border-radius:3px;display:inline;background-color:rgb(248,248,248)">xfs_dir2_sf_getdents+0x2a0/0x3a0</code></li>
</ul>
<pre style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;font-size:1em;line-height:1.2em;margin:1.2em 0px"><code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);border-radius:3px;display:inline;background-color:rgb(248,248,248);white-space:pre;overflow:auto;border-radius:3px;border:1px solid rgb(204,204,204);padding:0.5em 0.7em;display:block!important"><1>BUG: unable to handle kernel NULL pointer dereference at 0000000000000001
<1>IP: [<ffffffffa0362d60>] xfs_dir2_sf_getdents+0x2a0/0x3a0 [xfs]
<4>PGD 1072327067 PUD 1072328067 PMD 0
<4>Oops: 0000 [#1] SMP
<4>last sysfs file: /sys/devices/pci0000:80/0000:80:03.2/0000:83:00.0/host10/port-10:1/expander-10:1/port-10:1:16/end_device-10:1:16/target10:0:25/10:0:25:0/block/sdz/queue/rotational
<4>CPU 17
<4>Modules linked in: xt_conntrack tun xfs exportfs iptable_filter ipt_REDIRECT iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables ip_vs ipv6 libcrc32c iTCO_wdt iTCO_vendor_support ses enclosure igb i2c_algo_bit sb_edac edac_core i2c_i801 i2c_core sg shpchp lpc_ich mfd_core ixgbe dca ptp pps_core mdio power_meter acpi_ipmi ipmi_si ipmi_msghandler ext4 jbd2 mbcache sd_mod crc_t10dif mpt3sas scsi_transport_sas raid_class xhci_hcd ahci wmi dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan]
<4>
<4>Pid: 4454, comm: swift-object-se Not tainted 2.6.32-504.23.4.el6.x86_64 #1 Silicon Mechanics Storform R518.v5P/X10DRi-T4+
<4>RIP: 0010:[<ffffffffa0362d60>]  [<ffffffffa0362d60>] xfs_dir2_sf_getdents+0x2a0/0x3a0 [xfs]
<4>RSP: 0018:ffff880871f6de18  EFLAGS: 00010202
<4>RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000000
<4>RDX: 0000000000000001 RSI: 0000000000000000 RDI: 00007faa74006203
<4>RBP: ffff880871f6de68 R08: 000000032eb04bc9 R09: 0000000000000004
<4>R10: 0000000000008030 R11: 0000000000000246 R12: 0000000000000000
<4>R13: 0000000000000002 R14: ffff88106eff7000 R15: ffff8808715b4580
<4>FS:  00007faa85425700(0000) GS:ffff880028360000(0000) knlGS:0000000000000000
<4>CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>CR2: 0000000000000001 CR3: 0000001072325000 CR4: 00000000001407e0
<4>DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<4>DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
<4>Process swift-object-se (pid: 4454, threadinfo ffff880871f6c000, task ffff880860f18ab0)
<4>Stack:
<4> ffff880871f6de28 ffffffff811a4bb0 ffff880871f6df38 ffff880874749cc0
<4><d> 0000000100000103 ffff8802381f8c00 ffff880871f6df38 ffff8808715b4580
<4><d> 0000000000000082 ffff8802381f8d88 ffff880871f6dec8 ffffffffa035ab31
<4>Call Trace:
<4> [<ffffffff811a4bb0>] ? filldir+0x0/0xe0
<4> [<ffffffffa035ab31>] xfs_readdir+0xe1/0x130 [xfs]
<4> [<ffffffff811a4bb0>] ? filldir+0x0/0xe0
<4> [<ffffffffa038fe29>] xfs_file_readdir+0x39/0x50 [xfs]
<4> [<ffffffff811a4e30>] vfs_readdir+0xc0/0xe0
<4> [<ffffffff8119bd86>] ? final_putname+0x26/0x50
<4> [<ffffffff811a4fb9>] sys_getdents+0x89/0xf0
<4> [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
<4>Code: 01 00 00 00 48 c7 c6 38 6b 3a a0 48 8b 7d c0 ff 55 b8 85 c0 0f 85 af 00 00 00 49 8b 37 e9 ec fd ff ff 66 0f 1f 84 00 00 00 00 00 <41> 80 7c 24 01 00 0f 84 9c 00 00 00 45 0f b6 44 24 03 41 0f b6
<1>RIP  [<ffffffffa0362d60>] xfs_dir2_sf_getdents+0x2a0/0x3a0 [xfs]
<4> RSP <ffff880871f6de18>
<4>CR2: 0000000000000001
</code></pre><pre style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;font-size:1em;line-height:1.2em;margin:1.2em 0px"><code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);border-radius:3px;display:inline;background-color:rgb(248,248,248);white-space:pre;overflow:auto;border-radius:3px;border:1px solid rgb(204,204,204);padding:0.5em 0.7em;display:block!important">PID: 4454   TASK: ffff880860f18ab0  CPU: 17  COMMAND: "swift-object-se"
ROOT: /    CWD: /
 FD       FILE            DENTRY           INODE       TYPE PATH
  0 ffff881073604900 ffff8810749a9440 ffff8808740b9728 CHR  /dev/null
  1 ffff881073604900 ffff8810749a9440 ffff8808740b9728 CHR  /dev/null
  2 ffff881073604900 ffff8810749a9440 ffff8808740b9728 CHR  /dev/null
  3 ffff881074222840 ffff88106e184980 ffff88106e16cd48 SOCK
  4 ffff881072952c00 ffff88106e1848c0 ffff8810711cca08 SOCK
  5 ffff88087154b2c0 ffff88044f0f1780 ffff880018e51a08 SOCK
  6 ffff8810716f2600 ffff88107122d5c0 ffff881071315cb8 REG  /tmp/ffi1ECJ8Z
  7 ffff88086bd0a6c0 ffff88086fc4b840 ffff88086fc4a100 REG  /tmp/ffiIArHUO
  8 ffff88106f516ec0 ffff881067d9ae00 ffff8808745aa5e8 REG  [eventpoll]
  9 ffff88106ed35b40 ffff88106e15b200 ffff88106e201cc8 SOCK
 10 ffff88106f31ae00 ffff881074ad75c0 ffff88106e169a08 SOCK
 11 ffff88106ede2740 ffff881067f9a8c0 ffff8808745aa5e8 REG  [eventpoll]
 12 ffff880122e8bc80 ffff8808745a8240 ffff881074379d48 CHR  /dev/urandom
 13 ffff88087162e200 ffff88086fd87200 ffff88086fe82748 SOCK
 14 ffff88087135e840 ffff88086fc653c0 ffff88086fe82488 SOCK
 15 ffff88106f36f900 ffff88106e263680 ffff8808745aa5e8 REG  [eventpoll]
 16 ffff8810737f8680 ffff88106e3e9c80 ffff8808745aa5e8 REG  [eventpoll]
 17 ffff881073635540 ffff88106e1f9240 ffff8808745aa5e8 REG  [eventpoll]
 18 ffff88106ef5ba40 ffff88105bb6b080 ffff8808745aa5e8 REG  [eventpoll]
 19 ffff881074222300 ffff88105b975300 ffff8808745aa5e8 REG  [eventpoll]
 20 ffff881073770f00 ffff881013478080 ffff8808745aa5e8 REG  [eventpoll]
 21 ffff8810737f8bc0 ffff88106e3e9500 ffff8808745aa5e8 REG  [eventpoll]
 22 ffff88106ef5bc80 ffff88105bb72e00 ffff8808745aa5e8 REG  [eventpoll]
 23 ffff88106ef25e00 ffff88106e3e9bc0 ffff8808745aa5e8 REG  [eventpoll]
 24 ffff881071950d80 ffff8810383ee980 ffff8808745aa5e8 REG  [eventpoll]
 25 ffff88106ecca600 ffff881067d96840 ffff8808745aa5e8 REG  [eventpoll]
 26 ffff8808737ec740 ffff880855d95cc0 ffff8808745aa5e8 REG  [eventpoll]
 27 ffff88107345d3c0 ffff880fc46160c0 ffff8808745aa5e8 REG  [eventpoll]
 28 ffff88086bf2d600 ffff880777987b00 ffff880159ac0448 SOCK
 29 ffff8808737e9240 ffff880855c80a40 ffff8808745aa5e8 REG  [eventpoll]
 30 ffff88106f5e0140 ffff880ff5752440 ffff8808745aa5e8 REG  [eventpoll]
 31 ffff8808703a19c0 ffff8807847c8e40 ffff8808745aa5e8 REG  [eventpoll]
 32 ffff88086bd738c0 ffff88033be10800 ffff8806b47f2c08 SOCK
 33 ffff88087119eb40 ffff8806916b48c0 ffff8804cd27e648 SOCK
 34 ffff880870aed480 ffff8806b3fc4900 ffff880015583588 REG  /srv/node/d199/objects/12860/2c0/323cc020fd7dbd6c12472cd1c10742c0/1436266036.98015.ts
 35 ffff88106eeb0e00 ffff88101347de40 ffff8808745aa5e8 REG  [eventpoll]
 36 ffff8808703ed6c0 ffff88086fd65540 ffff8805eb03ed88 REG  /srv/node/d205/quarantined/objects/cd1d68f515006d443a54ff4f658091bc-a114bba1449b45238abf38dc741d7c27/1436254020.89801.ts
 37 ffff8810718343c0 ffff88105b9d32c0 ffff8808745aa5e8 REG  [eventpoll]
 38 ffff8808713da780 ffff880010c9a900 ffff88096368a188 REG  /srv/node/d224/quarantined/objects/b146865bf8034bfc42570b747c341b32/1436266042.57775.ts
 39 ffff880871cb03c0 ffff880495a8b380 ffff8808a5e6c988 REG  /srv/node/d224/tmp/tmpSpnrHg
 40 ffff8808715b4540 ffff8804819c58c0 ffff8802381f8d88 DIR  /srv/node/d224/quarantined/objects/b146865bf8034bfc42570b747c341b32
 41 ffff880871fce240 ffff880951136c00 ffff880bacf63d88 DIR  /srv/node/d199/objects/12860/2c0/323cc020fd7dbd6c12472cd1c10742c0
</code></pre><p style="margin:0px 0px 1.2em!important">I’ve got the vmcore dump from operator. Does vmcore help for troubleshooting kind issue ? </p>
<p style="margin:0px 0px 1.2em!important">Thanks // Hugo </p>
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Jm5ic3A7PC9kaXY+" style="height:0;width:0;max-height:0;max-width:0;overflow:hidden;font-size:0em;padding:0;margin:0">​</div></div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-06-18 22:59 GMT+08:00 Eric Sandeen <span dir="ltr"><<a href="mailto:sandeen@sandeen.net" target="_blank">sandeen@sandeen.net</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 6/18/15 9:29 AM, Kuo Hugo wrote:<br>
>>- Have you tried an 'xfs_repair -n' of the affected filesystem? Note that -n will report problems only and prevent any modification by repair.<br>
><br>
</span>> *We might to to xfs_repair if we can address which disk causes the issue. *<br>
<br>
If you do, please save the output, and if it finds anything, please provide the output in this thread.<br>
<br>
Thanks,<br>
-Eric<br>
</blockquote></div><br></div>