Date: Thu, 24 Jan 2013 19:50:49 +0100 From: Christian Gusenbauer <c47g@gmx.at> To: Konstantin Belousov <kostikbel@gmail.com> Cc: freebsd-fs@freebsd.org, freebsd-stable@freebsd.org Subject: Re: 9.1-stable crashes while copying data from a NFS mounted directory Message-ID: <201301241950.49455.c47g@gmx.at> In-Reply-To: <20130124180723.GI2522@kib.kiev.ua> References: <201301241805.57623.c47g@gmx.at> <20130124180359.GH2522@kib.kiev.ua> <20130124180723.GI2522@kib.kiev.ua>
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On Thursday 24 January 2013 19:07:23 Konstantin Belousov wrote: > On Thu, Jan 24, 2013 at 08:03:59PM +0200, Konstantin Belousov wrote: > > On Thu, Jan 24, 2013 at 06:05:57PM +0100, Christian Gusenbauer wrote: > > > Hi! > > > > > > I'm using 9.1 stable svn revision 245605 and I get the panic below if I > > > execute the following commands (as single user): > > > > > > # swapon -a > > > # dumpon /dev/ada0s3b > > > # mount -u / > > > # ifconfig age0 inet 192.168.2.2 mtu 6144 up > > > # mount -t nfs -o rsize=32768 data:/multimedia /mnt > > > # cp /mnt/Movies/test/a.m2ts /tmp > > > > > > then the system panics almost immediately. I'll attach the stack trace. > > > > > > Note, that I'm using jumbo frames (6144 byte) on a 1Gbit network, maybe > > > that's the cause for the panic, because the bcopy (see stack frame > > > #15) fails. > > > > > > Any clues? > > > > I tried a similar operation with the nfs mount of rsize=32768 and mtu > > 6144, but the machine runs HEAD and em instead of age. I was unable to > > reproduce the panic on the copy of the 5GB file from nfs mount. Hmmm, I did a quick test. If I do not change the MTU, so just configuring age0 with # ifconfig age0 inet 192.168.2.2 up then I can copy all files from the mounted directory without any problems, too. So it's probably age0 related? Ciao, Christian.
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