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-12952 Lustre <p>hitting this quite often in sanity/133*:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> BUG: unable to handle kernel paging request at ffff880138b3bfff PGD 368b067 P4D 368b067 PUD 19f7ff067 PMD 19f639067 PTE 800ffffec74c4060 Oops: 0000 [#1] SMP DEBUG_PAGEALLOC CPU: 0 PID: 14733 Comm: badarea_io Tainted: G W O --------- --- 4.18.0 #31 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 RIP: 0010:cfs_trace_copyin_string+0x30/0x80 [libcfs] Code: 89 f3 7f 53 4c 63 e1 48 89 d6 48 89 fd 4c 89 e2 e8 45 86 37 e1 48 85 c0 75 44 4c 89 e6 48 89 ef e8 35 2c 61 e1 eb 11 48 63 d0 &lt;0f&gt; b6 54 15 00 f6 82 60 26 cd 81 20 74 09 89 c2 83 e8 01 85 d2 79 RSP: 0018:ffff880131127db0 EFLAGS: 00010246 RAX: 00000000ffffffff RBX: 0000000000000080 RCX: ffff880138b3c000 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: ffff880138b3c000 RBP: ffff880138b3c000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 00007ffd4712f96c R14: 0000000000000000 R15: 0000000000000000 FS: 00007f6a5a97f500(0000) GS:ffff880198e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff880138b3bfff CR3: 0000000171a29000 CR4: 00000000000006b0 Call Trace: __proc_lnet_portal_rotor+0xcd/0x3a0 [lnet] lprocfs_call_handler+0x16/0x40 [libcfs] lnet_debugfs_write+0x28/0x40 [libcfs] full_proxy_write+0x4b/0x70 __vfs_write+0x1f/0x160 ? rcu_sync_lockdep_assert+0x9/0x50 ? __sb_start_write+0x13f/0x1a0 ? vfs_write+0x183/0x1b0 vfs_write+0xba/0x1b0 ksys_write+0x3d/0xa0 do_syscall_64+0x4b/0x1a0 entry_SYSCALL_64_after_hwframe+0x6a/0xdf </pre> </div></div> LU-12952

oops in cfs_trace_copyin_string

Bug Minor Closed Duplicate WC Triage Alex Zhuravlev Fri, 8 Nov 2019 05:06:17 +0000 Mon, 11 Nov 2019 14:38:41 +0000 Mon, 11 Nov 2019 14:38:41 +0000 0 3 <p>Alex Zhuravlev (bzzz@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/36726" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36726</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12952" title="oops in cfs_trace_copyin_string" class="issue-link" data-issue-key="LU-12952"><del>LU-12952</del></a> cfs: out-of-bound access in cfs_trace_copyin_string<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: ae480ab0f2cacd411658e661ed8c3363bf0c4139</p> <p>Alex I think patch <a href="https://review.whamcloud.com/#/c/36567/1" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/#/c/36567</a> back ported from upstream fixes the same bug.</p> <p>a dup of <a href="https://jira.whamcloud.com/browse/LU-9859" title="libcfs simplification" class="issue-link" data-issue-key="LU-9859">LU-9859</a></p> Related LU-9859 Development Rank 1|i00p73: Rank (Obsolete) 9223372036854775807 Severity