Date: Fri, 2 Apr 2010 05:52:54 +0400 From: pluknet <pluknet@gmail.com> To: Oleg Lomaka <oleg.lomaka@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: panic during work with jailed postgresql8.4 Message-ID: <g2qa31046fc1004011852p3686b01ct256072bf22fa4013@mail.gmail.com> In-Reply-To: <44FD9C14-7114-4270-A7B6-F029995BA282@gmail.com> References: <44FD9C14-7114-4270-A7B6-F029995BA282@gmail.com>
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On 1 April 2010 22:18, Oleg Lomaka <oleg.lomaka@gmail.com> wrote: > Hello, > > I have a kernel panic when connect to postgresql8.4 server installed in one of jails from another jail. It's 100% reproducible. > Also I have tried to connect from host machine to jailed pg server. That way it works fine without crash. > > Server configuration uses geli and zfs. Four disks encrypted using geli. And raidz2 is using ad8.eli, ad10.eli, ad12.eli, ad14.eli providers. All jails located at this raidz2 pool. > > Also I use ezjail for jails management. And it uses NFS to mount directories with base system. > > atal double fault > rip = 0xffffffff8063510a > rsp = 0xffffff80eaec5f50 > rbp = 0xffffff80eaec6040 > cpuid = 1; apic id = 02 > panic: double fault > cpuid = 1 > Uptime: 7m11s > Physical memory: 8169 MB > > uname -a > FreeBSD cerberus.regredi.com 8.0-STABLE FreeBSD 8.0-STABLE #7 r206031: Thu Apr 1 13:43:57 EEST 2010 root@cerberus.regredi.com:/usr/obj/usr/src/sys/GENERIC amd64 > > Link to dmesg.boot: > http://docs.google.com/leaf?id=0B-irbkAqk9i7OGY2ZWJiODgtOWJmMy00NDQ1LTliZDctZjU3N2YwNmMxNjZl&hl=en > > Link to kernel core backtrace: > http://docs.google.com/Doc?docid=0AeirbkAqk9i7ZGc5Yzc2ZndfM2M4NzYydmRw&hl=en Looking at backtrace, I wonder whether tp->t_maxseg changes in tcp_mtudisc() at all. You should be able to extract its value on each 2*n frame in that big recursive call. -- wbr, pluknet
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