Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Am Freitag, 20. August 2004 15:12 schrieb Lars Ellenberg: > / 2004-08-20 13:47:56 +0200 > > \ Stephan Rattai: > > Hi everybody, > > > > I got a little problem with drbd 0.7.2 and kernel 2.6.8.1. During a > > resync I did 'cat /proc/drbd' and got > > > > version: 0.7.2 (api:75/proto:74) > > SVN Revision: 1483:1485 build by pete at bonnie, 2004-08-17 17:17:07 > > 0: cs:SyncSource st:Primary/Secondary ld:Consistent > > ns:22933688 nr:0 dw:0 dr:22933688 al:0 bm:1400 lo:0 pe:0 ua:0 ap:0 > > > > [>....................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >.......................................................................... > >........................ > > > > each time (I tried several times). > > > > A few seconds later the machine wasn't reachable anymore- it decided it > > would be a good idea to reboot. The last sign of living was: > > > > Aug 20 13:14:46 bonnie kernel: drbd0: Resync started as SyncSource (need > > to sync 11819424 KB [2954856 bits set]). > > Aug 20 13:23:32 bonnie kernel: drbd0: ASSERT( rs_left < mdev->rs_total ) > > in /root/src/drbd-0.7.2/drbd/drbd_proc.c:70 > > Aug 20 13:23:32 bonnie kernel: proc_file_read: Apparent buffer overflow! > > > > The last two messages appeared about 20 times. > > hm... > I replaced that ASSERT with an appropriate if branch in svn now. > so I prevent the buffer overflow. > but... this just masks the logic bug that is hidden elsewhere. > most likely its "only" some race somewhere, two assignments in the > "wrong" order or some such. We'll investigate. > > may I ask some more system details: > cpus, storage device size, ... It's a Xeon machine with just one CPU so far, SMP support (for ht), fdisk -s on the partition says: 23053275, so it's about 22 Gig. What else ? 1 Gig. RAM, Gbit nic.