It was a problem with 2-3 consecutive reboots with 19. I believe it has
to do with mounting rpc_pipefs, and the stack trace also seems to align
with this, it looks like some piece of the memory structure is
uninitialized. I personally didn't notice anything between 18 and 19
that would have caused this, but I am far from a kernel expert.
It may still be present in -20, but generally I do not reboot that
frequently. I often tend to skip over several updates at a time before
rebooting.
(gdb) list *(__rpc_clnt_handle_event+0x48)
0x2618 is in __rpc_clnt_handle_event
(/home/buildd/debian/precise/linux-lts-saucy/linux-lts-saucy-3.11.0-19/net/sunrpc/clnt.c:196).
191 if (!dentry)
192 return -ENOENT;
193 if (IS_ERR(dentry))
194 return PTR_ERR(dentry);
195 clnt->cl_dentry = dentry;
196 if (clnt->cl_auth->au_ops->pipes_create) {
197 err =
clnt->cl_auth->au_ops->pipes_create(clnt->cl_auth);
198 if (err)
199 __rpc_clnt_remove_pipedir(clnt);
200 }
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https://bugs.launchpad.net/bugs/1310350
Title:
Oops __rpc_clnt_handle_event+0x48/0xd0
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