--- Tracy R Reed <treed@copilotconsulting.com> wrote: > Linux home 2.4.20 #18 SMP Fri Sep 12 22:49:21 PDT > 2003 i686 GNU/Linux > home:~# lvcreate --version > LVM version: 1.95.15 (2003-01-10) > Library version: 0.96.07-ioctl-cvs (2002-11-21) > Driver version: 1.0.8 > > I created a script to take daily snapshots of my > four logical volumes for > backup purposes. Approximately every other time I > run it the whole lvm > system seems to freeze up. The first time it did > this it crashed the whole > computer by not allowing any writes to disk. The > second two times the > system didn't crash but I now have hung lvremove and > lvcreate processes > which appear to require a reboot to clear. strace on > the processes shows > nothing happening and kill -9 has no effect. In the > dmesg I have lots of > "invalidate: busy buffer" and then a kernel oops: > > Unable to handle kernel NULL pointer dereference at > virtual address > 00000001 > printing eip: > ce6a16d0 > *pde = 00000000 > Oops: 0002 > CPU: 1 > EIP: 0010:[<ce6a16d0>] Tainted: P > EFLAGS: 00010202 > eax: ce6a16d0 ebx: ce6a16a0 ecx: 00000010 edx: > ce6a16d0 > esi: 00000001 edi: 00000000 ebp: c023c230 esp: > df6c3f3c > ds: 0018 es: 0018 ss: 0018 > Process kcopyd (pid: 69, stackpage=df6c3000) > Stack: c023b83a ce6a16d0 00000001 00000001 00000b76 > 00000000 0000001b > 00000000 > c7cc3c10 cda29004 00000010 c023a52f d41f3e8c > c7c7b218 c023a4e0 > c7c7b218 > c023c891 00000000 c7c7b218 cda29004 c031f858 > c023c240 cda29004 > c023c394 > Call Trace: [<c023b83a>] [<c023a52f>] > [<c023a4e0>] [<c023c891>] > [<c023c240>] > [<c023c394>] [<c023c424>] [<c023c230>] > [<c023c535>] [<c01075ee>] > [<c023c480>] > > Code: d0 16 6a ce d0 16 6a ce 00 00 00 00 69 dd 63 > 00 8c ff 7c f9 > > This seems to be a reproduceable problem. I was > under the impression that > LVM was fairly stable by this point. The first crash > happened in the > middle of a backup that had been running for 48 > hours which I will now > have to restart. Not too happy. :( Uh oh...now the > system can't write to > disk again and I will have to reboot. > > -- > Tracy Reed > http://copilotconsulting.com > > ATTACHMENT part 2 application/pgp-signature __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
