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9.4.14

940014

05-12-2023

[LU-1674] calling open() with an invalid `mode' parameter triggers an LBUG if an 1.8 client tries to create such a file on a 2.2 server https://jira.whamcloud.com/browse/LU-1674 Lustre <p>calling open() with an invalid `mode' parameter triggers an LBUG if an 1.8 client tries to create such a file on a 2.2 server</p> client 1.8.x - server 2.2 LU-1674

calling open() with an invalid `mode' parameter triggers an LBUG if an 1.8 client tries to create such a file on a 2.2 server

Bug Major Resolved Duplicate Zhenyu Xu ETHz Support client Wed, 25 Jul 2012 12:40:55 +0000 Thu, 15 May 2014 20:17:38 +0000 Fri, 27 Jul 2012 09:35:49 +0000 Lustre 2.2.0 Lustre 1.8.9 0 1 <p>calling open() with an invalid `mode' parameter triggers an LBUG if an 1.8 client tries to create such a file on a 2.2 server:</p> <p>#include <sys/file.h><br/> #include <errno.h></p> <p>int main() {<br/> int fd;<br/> fd = open("foobar", O_RDWR|O_CREAT, 251235251253);<br/> close(fd); <br/> return 0; <br/> } </p> <p>Executing this code produces:</p> <p>LustreError: 8759:0:(client.c:1750:__ptlrpc_free_req()) ASSERTION(!request->rq_replay) failed: req ffff81024fa36400<br/> LustreError: 8759:0:(client.c:1750:__ptlrpc_free_req()) LBUG<br/> Pid: 8759, comm: a.out</p> <p>Call Trace:<br/> <span class="error">[<ffffffff886846a1>]</span> libcfs_debug_dumpstack+0x51/0x60 <span class="error">[libcfs]</span><br/> <span class="error">[<ffffffff88684bda>]</span> lbug_with_loc+0x7a/0xd0 <span class="error">[libcfs]</span><br/> <span class="error">[<ffffffff887ddf04>]</span> __ptlrpc_req_finished+0x444/0xa70 <span class="error">[ptlrpc]</span><br/> <span class="error">[<ffffffff889b9f45>]</span> ll_intent_release+0x95/0x100 <span class="error">[lustre]</span><br/> <span class="error">[<ffffffff800e3958>]</span> lookup_instantiate_filp+0x5f/0x83<br/> <span class="error">[<ffffffff88a06a28>]</span> ll_create_nd+0x5b8/0x6c0 <span class="error">[lustre]</span><br/> <span class="error">[<ffffffff88a07ef7>]</span> ll_lookup_nd+0x207/0x400 <span class="error">[lustre]</span><br/> <span class="error">[<ffffffff80022989>]</span> d_alloc+0x176/0x1ab<br/> <span class="error">[<ffffffff8003a40d>]</span> vfs_create+0xe8/0x15e<br/> <span class="error">[<ffffffff8001b22a>]</span> open_namei+0x19d/0x6ba<br/> <span class="error">[<ffffffff800275e1>]</span> do_filp_open+0x1c/0x38<br/> <span class="error">[<ffffffff80019fb3>]</span> do_sys_open+0x44/0xbe<br/> <span class="error">[<ffffffff8005d28d>]</span> tracesys+0xd5/0xe0</p> <p>LustreError: dumping log to /tmp/lustre-log.1343223938.8759</p> <p>The directory where 'foobar' was supposed to be created will also be blocked on the affected client.</p> <p>Bobijam</p> <p>Could you please comment on this one?</p> <p>Thanks</p> <p>Peter</p> <p>It's dup of <a href="https://jira.whamcloud.com/browse/LU-190" title="random mode opencreate will LBUG lustre client" class="issue-link" data-issue-key="LU-190"><del>LU-190</del></a>, I'll port the patch to b1_8.</p> <p>patch port at <a href="http://review.whamcloud.com/3469" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/3469</a></p> <p>Hi,</p> <p>Thanks for the patch: I can confirm that it fixes the issue for us.</p> <p>Peter, could you close this bug? For us is fixed with the patch... </p> <p>Thanks in advance.</p> <p>Duplicate of <a href="https://jira.whamcloud.com/browse/LU-199" title="can't clear ext4 journal stats" class="issue-link" data-issue-key="LU-199"><del>LU-199</del></a></p> Duplicate LU-190 Development Epic client lbug Rank 1|hzvgpz: Rank (Obsolete) 6358 Severity