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-2637 Lustre <p>I hit this today on a few of the IONs for Sequoia. I was running a <tt>mount</tt> and <tt>umount</tt> of the filesystem in a loop, upon killing the script I hit the crash below a some of the nodes:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>LustreError: 8462:0:(llite_lib.c:543:client_common_fill_super()) cannot start close thread: rc -513 Unable to handle kernel paging request for data at address 0x00000010 Faulting instruction address: 0x80000000046825cc Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=68 Blue Gene/Q Modules linked in: lmv(U) mgc(U) lustre(U) mdc(U) fid(U) fld(U) lov(U) osc(U) ko2iblnd(U) ptlrpc(U) obdclass(U) lnet(U) lvfs(U) libcfs(U) bgvrnic bgmudm NIP: 80000000046825cc LR: 8000000003bc3acc CTR: 8000000004682590 REGS: c0000003c4a0eaa0 TRAP: 0300 Not tainted (2.6.32-220.23.3.bgq.18llnl.V1R1M2.bgq62_16.ppc64) MSR: 0000000080029000 &lt;EE,ME,CE&gt; CR: 44088488 XER: 20000000 DEAR: 0000000000000010, ESR: 0000000000000000 TASK = c0000003e4fdf360[8462] 'mount.lustre' THREAD: c0000003c4a0c000 CPU: 3 GPR00: 0000000003060580 c0000003c4a0ed20 80000000046f07a0 c0000003ce1726f0 GPR04: c000000360b9f800 00000000000012e0 c0000003c4a0f0b0 00000000640a0000 GPR08: c000000360b9f954 0000000000000000 0000000000000001 8000000004684240 GPR12: 8000000003bfebb0 c000000000764c00 c0000003c4a68000 00000000000005c2 GPR16: 0000000000000001 0000000000002d20 0000000002000400 000000000000028a GPR20: 0000000000000295 0000000000020000 80000000025220e0 0000000000000001 GPR24: 0000000000000000 c0000003ce16c138 8000000000b2424c 0000000040080000 GPR28: c0000003ce1726f0 8000000000b24248 80000000046eda40 c0000003c4a0ed20 NIP [80000000046825cc] .osc_import_event+0xa5c/0x26d0 [osc] LR [8000000003bc3acc] .ptlrpc_deactivate_import+0x1fc/0x7d0 [ptlrpc] Call Trace: [c0000003c4a0ed20] [c000000360b9f8b0] 0xc000000360b9f8b0 (unreliable) [c0000003c4a0ee60] [8000000003bc3acc] .ptlrpc_deactivate_import+0x1fc/0x7d0 [ptlrpc] [c0000003c4a0ef30] [8000000003bc47b8] .ptlrpc_invalidate_import+0x1d8/0xef0 [ptlrpc] [c0000003c4a0f0d0] [8000000004690238] .osc_precleanup+0x2a8/0x720 [osc] [c0000003c4a0f190] [80000000024ac3a0] .class_cleanup+0x240/0x17a0 [obdclass] [c0000003c4a0f310] [80000000024b3208] .class_process_config+0x20f8/0x4b00 [obdclass] [c0000003c4a0f460] [80000000024b614c] .class_manual_cleanup+0x53c/0x1760 [obdclass] [c0000003c4a0f5c0] [800000000691d6e4] .ll_put_super+0x2c4/0x800 [lustre] [c0000003c4a0f750] [800000000691e3d8] .ll_fill_super+0x7b8/0xae20 [lustre] [c0000003c4a0f900] [80000000024e1144] .lustre_fill_super+0x4c4/0x8e0 [obdclass] [c0000003c4a0f9d0] [c0000000000d4508] .get_sb_nodev+0x84/0xe8 [c0000003c4a0fa80] [80000000024ba618] .lustre_get_sb+0x28/0x40 [obdclass] [c0000003c4a0fb10] [c0000000000d2f14] .vfs_kern_mount+0x80/0x114 [c0000003c4a0fbc0] [c0000000000d3010] .do_kern_mount+0x58/0x130 [c0000003c4a0fc80] [c0000000000f12fc] .do_mount+0x84c/0x908 [c0000003c4a0fd70] [c0000000000f1470] .SyS_mount+0xb8/0x124 [c0000003c4a0fe30] [c000000000000580] syscall_exit+0x0/0x2c Instruction dump: 419e00f4 801a0000 20b14000 7fa50040 41dd1868 801d0000 780907e1 40820108 eb7900c0 777b4008 4182097c e9390000 &lt;e9290010&gt; eb6901c0 2fbb0000 419e0d10 Kernel panic - not syncing: Fatal exception Call Trace: [c0000003c4a0e7d0] [c000000000008d1c] .show_stack+0x7c/0x184 (unreliable) [c0000003c4a0e880] [c000000000431ef4] .panic+0x80/0x1ac [c0000003c4a0e910] [c000000000019d40] .die+0x1a4/0x1bc [c0000003c4a0e9b0] [c00000000001f95c] .bad_page_fault+0xb8/0xd4 [c0000003c4a0ea30] [c000000000014e4c] storage_fault_common+0x48/0x4c --- Exception: 300 at .osc_import_event+0xa5c/0x26d0 [osc] LR = .ptlrpc_deactivate_import+0x1fc/0x7d0 [ptlrpc] [c0000003c4a0ed20] [c000000360b9f8b0] 0xc000000360b9f8b0 (unreliable) [c0000003c4a0ee60] [8000000003bc3acc] .ptlrpc_deactivate_import+0x1fc/0x7d0 [ptlrpc] [c0000003c4a0ef30] [8000000003bc47b8] .ptlrpc_invalidate_import+0x1d8/0xef0 [ptlrpc] [c0000003c4a0f0d0] [8000000004690238] .osc_precleanup+0x2a8/0x720 [osc] [c0000003c4a0f190] [80000000024ac3a0] .class_cleanup+0x240/0x17a0 [obdclass] [c0000003c4a0f310] [80000000024b3208] .class_process_config+0x20f8/0x4b00 [obdclass] [c0000003c4a0f460] [80000000024b614c] .class_manual_cleanup+0x53c/0x1760 [obdclass] [c0000003c4a0f5c0] [800000000691d6e4] .ll_put_super+0x2c4/0x800 [lustre] [c0000003c4a0f750] [800000000691e3d8] .ll_fill_super+0x7b8/0xae20 [lustre] [c0000003c4a0f900] [80000000024e1144] .lustre_fill_super+0x4c4/0x8e0 [obdclass] [c0000003c4a0f9d0] [c0000000000d4508] .get_sb_nodev+0x84/0xe8 [c0000003c4a0fa80] [80000000024ba618] .lustre_get_sb+0x28/0x40 [obdclass] [c0000003c4a0fb10] [c0000000000d2f14] .vfs_kern_mount+0x80/0x114 [c0000003c4a0fbc0] [c0000000000d3010] .do_kern_mount+0x58/0x130 [c0000003c4a0fc80] [c0000000000f12fc] .do_mount+0x84c/0x908 [c0000003c4a0fd70] [c0000000000f1470] .SyS_mount+0xb8/0x124 [c0000003c4a0fe30] [c000000000000580] syscall_exit+0x0/0x2c </pre> </div></div> LU-2637

Invalid kernel paging request in osc_import_event

Bug Minor Resolved Cannot Reproduce Zhenyu Xu Prakash Surya llnl Thu, 17 Jan 2013 18:36:41 +0000 Tue, 14 Dec 2021 22:59:59 +0000 Tue, 14 Dec 2021 22:59:58 +0000 Lustre 2.4.0 0 3 <p>Bobijam</p> <p>Could you please look into this one?</p> <p>Thanks</p> <p>Peter</p> <p>Prakash Surya,</p> <p>For 2.4 Lustre, I could not find the calling path which can reach osc_precleanup(osc, OBD_CLEANUP_EARLY) stage (only in that stage would ptlrpc_deactivate_import() be called), are you sure it's 2.4 Lustre?</p> <p>Also could you decipher which code does osc_import_event+0xa5c refer to? The issue could be something hasn't set up completely while ll_put_super() presumes its totality. </p> Development End date Thu, 26 Jun 2014 18:36:41 +0000 Rank 1|hzvfkv: Rank (Obsolete) 6169 Severity Start date Thu, 17 Jan 2013 18:36:41 +0000