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-2199 Lustre <p>Hit this LBUG on one of our Sequoia IO nodes running the old Orion code base orion-2_3_49_54_2-75chaos:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre> LustreError: 3216:0:(osc_request.c:1859:brw_interpret()) @@@ obdo already freed req@c0000003c24cc800 x1415959349900530/t12885333672(12885333672) o4-&gt;ls1-OST00e3-osc-c0000003c6904c00@172.20.2.27@o2ib500:6/4 lens 456/416 e 0 to 0 dl 1350423562 ref 1 fl Interpret:R/4/0 rc 0/0 LustreError: 3216:0:(osc_request.c:1860:brw_interpret()) LBUG Call Trace: [c0000003e9343870] [c000000000008190] .show_stack+0x7c/0x184 (unreliable) [c0000003e9343920] [80000000009f0c1c] .libcfs_debug_dumpstack+0x9c/0xe0 [libcfs] [c0000003e93439c0] [80000000009f1260] .lbug_with_loc+0x50/0xc0 [libcfs] [c0000003e9343a50] [8000000004445918] .brw_interpret+0xd28/0xec0 [osc] [c0000003e9343b70] [800000000383b8a4] .ptlrpc_check_set+0x384/0x3c40 [ptlrpc] [c0000003e9343d10] [800000000387d86c] .ptlrpcd_check+0x5bc/0x760 [ptlrpc] [c0000003e9343e30] [800000000387dd28] .ptlrpcd+0x318/0x4d0 [ptlrpc] [c0000003e9343f90] [c00000000001a9e0] .kernel_thread+0x54/0x70 ^GMessage from syslogd@(none) at Oct 16 14:37:37 ... kernel:LustreError: 3216:0:(osc_request.c:1860:brw_interpret()) LBUG Kernel panic - not syncing: LBUG Call Trace: [c0000003e9343880] [c000000000008190] .show_stack+0x7c/0x184 (unreliable) [c0000003e9343930] [c000000000432c0c] .panic+0x80/0x1a8 [c0000003e93439c0] [80000000009f12c0] .lbug_with_loc+0xb0/0xc0 [libcfs] [c0000003e9343a50] [8000000004445918] .brw_interpret+0xd28/0xec0 [osc] [c0000003e9343b70] [800000000383b8a4] .ptlrpc_check_set+0x384/0x3c40 [ptlrpc] [c0000003e9343d10] [800000000387d86c] .ptlrpcd_check+0x5bc/0x760 [ptlrpc] [c0000003e9343e30] [800000000387dd28] .ptlrpcd+0x318/0x4d0 [ptlrpc] [c0000003e9343f90] [c00000000001a9e0] .kernel_thread+0x54/0x70 LustreError: dumping log to /tmp/lustre-log.1350423457.3216 </pre> </div></div> orion-2_3_49_54_2-75chaos LU-2199

LBUG triggered in brw_interpret: "obdo already freed"

Bug Blocker Resolved Cannot Reproduce Jinshan Xiong Prakash Surya topsequoia Tue, 16 Oct 2012 18:34:38 +0000 Tue, 13 Nov 2012 15:07:57 +0000 Tue, 13 Nov 2012 15:07:57 +0000 Lustre 2.4.0 0 5 <p>Alex</p> <p>Could someone please look into this one?</p> <p>Thanks</p> <p>Peter</p> <p>Hit again.</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>2012-11-01 14:23:35.708036 {DefaultControlEventListener} [mmcs]{103}.7.1: LustreError: 3336:0:(osc_request.c:1859:brw_interpret()) @@@ obdo already freed req@c0000002e0f58c00 x1417459081295033/t21475646365(21475646365) o4-&gt;ls1-OST00d5-osc-c0000003ec619800@172.20.2.13@o2ib500:6/4 lens 456/416 e 0 to 0 dl 1351805120 ref 1 fl Interpret:R/4/0 rc 0/0 2012-11-01 14:23:35.747969 {DefaultControlEventListener} [mmcs]{103}.7.1: LustreError: 3336:0:(osc_request.c:1860:brw_interpret()) LBUG 2012-11-01 14:23:35.787805 {DefaultControlEventListener} [mmcs]{103}.7.1: Call Trace: 2012-11-01 14:23:35.827832 {DefaultControlEventListener} [mmcs]{103}.7.1: [c0000003e90b3870] [c000000000008160] .show_stack+0x7c/0x184 (unreliable) 2012-11-01 14:23:35.868181 {DefaultControlEventListener} [mmcs]{103}.7.1: [c0000003e90b3920] [80000000009f0c1c] .libcfs_debug_dumpstack+0x9c/0xe0 [libcfs] 2012-11-01 14:23:35.908596 {DefaultControlEventListener} [mmcs]{103}.7.1: [c0000003e90b39c0] [80000000009f1260] .lbug_with_loc+0x50/0xc0 [libcfs] 2012-11-01 14:23:35.947814 {DefaultControlEventListener} [mmcs]{103}.7.1: [c0000003e90b3a50] [8000000004445918] .brw_interpret+0xd28/0xec0 [osc] 2012-11-01 14:23:35.987861 {DefaultControlEventListener} [mmcs]{103}.7.1: [c0000003e90b3b70] [800000000383b8a4] .ptlrpc_check_set+0x384/0x3c40 [ptlrpc] 2012-11-01 14:23:36.027871 {DefaultControlEventListener} [mmcs]{103}.7.1: [c0000003e90b3d10] [800000000387d86c] .ptlrpcd_check+0x5bc/0x760 [ptlrpc] 2012-11-01 14:23:36.068110 {DefaultControlEventListener} [mmcs]{103}.7.1: [c0000003e90b3e30] [800000000387dd28] .ptlrpcd+0x318/0x4d0 [ptlrpc] 2012-11-01 14:23:36.107803 {DefaultControlEventListener} [mmcs]{103}.7.1: [c0000003e90b3f90] [c00000000001a9e0] .kernel_thread+0x54/0x70 2012-11-01 14:23:36.198902 {DefaultControlEventListener} [mmcs]{103}.13.1: ^GMessage from syslogd@(none) at Nov 1 14:23:35 ... 2012-11-01 14:23:36.237809 {DefaultControlEventListener} [mmcs]{103}.13.1: kernel:LustreError: 3336:0:(osc_request.c:1860:brw_interpret()) LBUG 2012-11-01 14:23:36.288623 {DefaultControlEventListener} [mmcs]{103}.7.2: Kernel panic - not syncing: LBUG 2012-11-01 14:23:36.328575 {DefaultControlEventListener} [mmcs]{103}.7.2: Call Trace: 2012-11-01 14:23:36.368579 {DefaultControlEventListener} [mmcs]{103}.7.2: [c0000003e90b3880] [c000000000008160] .show_stack+0x7c/0x184 (unreliable) 2012-11-01 14:23:36.407824 {DefaultControlEventListener} [mmcs]{103}.7.2: [c0000003e90b3930] [c000000000432c0c] .panic+0x80/0x1a8 2012-11-01 14:23:36.448613 {DefaultControlEventListener} [mmcs]{103}.7.2: [c0000003e90b39c0] [80000000009f12c0] .lbug_with_loc+0xb0/0xc0 [libcfs] 2012-11-01 14:23:36.488034 {DefaultControlEventListener} [mmcs]{103}.7.2: [c0000003e90b3a50] [8000000004445918] .brw_interpret+0xd28/0xec0 [osc] 2012-11-01 14:23:36.528883 {DefaultControlEventListener} [mmcs]{103}.7.2: [c0000003e90b3b70] [800000000383b8a4] .ptlrpc_check_set+0x384/0x3c40 [ptlrpc] 2012-11-01 14:23:36.568987 {DefaultControlEventListener} [mmcs]{103}.7.2: [c0000003e90b3d10] [800000000387d86c] .ptlrpcd_check+0x5bc/0x760 [ptlrpc] 2012-11-01 14:23:36.608557 {DefaultControlEventListener} [mmcs]{103}.7.2: [c0000003e90b3e30] [800000000387dd28] .ptlrpcd+0x318/0x4d0 [ptlrpc] 2012-11-01 14:23:36.649014 {DefaultControlEventListener} [mmcs]{103}.7.2: [c0000003e90b3f90] [c00000000001a9e0] .kernel_thread+0x54/0x70 </pre> </div></div> <p>I hit this pretty reliably today while we were running 2.3.49.54-75chaos, but after installing 2.3.54-2chaos I haven't hit it yet. It may be fixed...or perhaps just harder to hit now.</p> <p>Hi Chris, where can I refer to the code base you're using?</p> <p>I updated the tags on our github site.</p> <p>The tag for 2.3.49.54-75chaos is <a href="https://github.com/chaos/lustre/tree/orion-2_3_49_54_2-75chaos" class="external-link" target="_blank" rel="nofollow noopener">orion-2_3_49_54_2-75chaos</a>.<br/> The tag for 2.3.54-2chaos is <a href="https://github.com/chaos/lustre/tree/2.3.54-2chaos" class="external-link" target="_blank" rel="nofollow noopener">2.3.54-2chaos</a>.</p> <p>now that it can't be seen anymore, let's lower the priority and leave this ticket open.</p> <p>Please reopen it if this problem can be seen again</p> Development Rank 1|hzvajj: Rank (Obsolete) 5243 Severity