Date: Mon, 8 Sep 1997 19:35:59 +0200 From: j@ida.interface-business.de (J Wunsch) To: freebsd-bugs@freebsd.org Subject: My 2.2-stable panic reproduced Message-ID: <19970908193559.WU22983@ida.interface-business.de>
next in thread | raw e-mail | index | archive | help
Well, it hit again. And it's not only an ahc(4) issue, as it seems. I was rm -rf'ing a large directory hierarchy on an additional disk, and thought about speeding it up by doing mount -u -o async /dev/sd3e /mnt1/usr while the rm was running. This yielded on the console: ============================================================================ WARNING: R/W mount of /dev/sd3e denied. Filesystem is not clean - run fsck. worm0(ahc1:0:0): Deferred Error: UNIT ATTENTION asc: 29,0 worm0(ahc1:0:0): Power on, reset, or bus device reset occurred panic: vref used where vget required syncing disks... 50 50 42 32 21 9 done dumping to dev 401, offset 241664 dump 32 ============================================================================ ...and there it was sitting, waiting for me to hit reset. No coredumps on 2.2-stable, see my PR. I forgot to boot the DDB kernel at the last reboot, but i think the panic message stands for itself. It's probably a little bogus that a R/W upgrade mount was denied, but well, i could have lived with this. I have no idea why worm0 (which is on the same bus as sd3) caught a UNIT ATTN, nor why this was noticed just at that point (/dev/worm0 had been mounted all the time). Maybe someone was accessing the CD-ROM just in this moment over the network, but i doubt this. (The Plasmon has a strong tendency for deferred errors, for whatever reason.) It would be great if we could fix the `vref' panic at least, before 2.2.5 will ship. -- J"org Wunsch Unix support engineer joerg_wunsch@interface-business.de http://www.interface-business.de/~j
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19970908193559.WU22983>