Date: Tue, 22 Jan 2013 10:55:48 -0500 From: Adam McDougall <mcdouga9@egr.msu.edu> To: freebsd-stable@freebsd.org Subject: Re: FreeBSD 9.1 - openldap slapd lockups, mutex problems Message-ID: <50FEB684.9040201@egr.msu.edu> In-Reply-To: <D9280700-5105-4068-82E2-5E353C07EC2F@free.de> References: <D9280700-5105-4068-82E2-5E353C07EC2F@free.de>
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On 01/22/13 05:19, Kai Gallasch wrote: > Hi. > > (Im am sending this to the "stable" list, because it maybe kernel related.. ) > > On 9.1-RELEASE I am witnessing lockups of the openldap slapd daemon. > > The slapd runs for some days and then hangs, consuming high amounts of CPU. > In this state slapd can only be restarted by SIGKILL. > > # procstat -kk 71195 > PID TID COMM TDNAME KSTACK > 71195 149271 slapd - mi_switch+0x186 sleepq_catch_signals+0x2cc sleepq_wait_sig+0x16 _sleep+0x29d do_wait+0x678 __umtx_op_wait+0x68 amd64_syscall+0x546 Xfast_syscall+0xf7 > On UFS2 slapd runs fine, without showing the error. > Has anyone else running openldap-server on FreeBSD 9.1 inside a jail seen similar problems? I have seen openldap spin the cpu and even run out of memory to get killed on some of our test systems running ~9.1-rel with zfs. No jails. I'm not sure what would have put load on our test systems other than nightly scripts. I had to focus my attention on other servers so I don't have one to inspect at this point, but I won't be surprised if I see this in production. Thanks for the tip about it being ZFS related, and I'll let you know if I find anything out. This is mostly a "me too" reply.
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