Date: Thu, 16 Jan 2003 04:27:37 -0500 (EST) From: Trevor Johnson <trevor@jpj.net> To: Wilko Bulte <wkb@freebie.xs4all.nl> Cc: Kris Kennaway <kris@obsecurity.org>, Andrew Gallatin <gallatin@cs.duke.edu>, <alpha@FreeBSD.ORG>, <current@FreeBSD.ORG> Subject: Re: unexpected machine check on 5.0 alpha Message-ID: <20030116035919.T30783-100000@blues.jpj.net> In-Reply-To: <20030116033841.N30783-100000@blues.jpj.net>
next in thread | previous in thread | raw e-mail | index | archive | help
I wrote: > "dd if=zero of=da2" I forgot to mention that after the crash, the LED on disk da2 remains lit, as is the one on da0 (which contains /, /tmp, /usr, and /var but not /home). When I had the same disk drives attached to a PC, I could write to them at about 45 kilobytes per second. Multiplying that by 19 hours gives about 3 gigabytes, and it was a 4 gigabyte disk. I was doing the "dd" in an attempt to follow the recipe posted by Andre Albsmeier on <URL:http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&th=440939b0f4db6bdb&seekm=arg34b%2410hi%241%40FreeBSD.csie.NCTU.edu.tw&frame=off>. I had experienced the same problem that John De Boskey had been having: -- begin log -- # ccdconfig ccd0 128 CCDF_UNIFORM /dev/da2 /dev/da3 /dev/da4 /dev/da5 # ccdconfig -g >/etc/ccd.conf # cat /etc/ccd.conf ccd0 128 2 /dev/da2 /dev/da3 /dev/da4 /dev/da5 # ls /dev/ccd* /dev/ccd0c # newfs /dev/ccd0c /dev/ccd0c: 16380.2MB (33546752 sectors) block size 16384, fragment size 2048 using 90 cylinder groups of 183.62MB, 11752 blks, 23552 inodes. super-block backups (for fsck -b #) at: 32, 376096, 752160, 1128224, 1504288, 1880352, 2256416, 2632480, 3008544, 3384608, 3760672, 4136736, 4512800, 4888864, 5264928, 5640992, 6017056, 6393120, 6769184, 7145248, 7521312, 7897376, 8273440, 8649504, 9025568, 9401632, 9777696, 10153760, 10529824, 10905888, 11281952, 11658016, 12034080, 12410144, 12786208, 13162272, 13538336, 13914400, 14290464, 14666528, 15042592, 15418656, 15794720, 16170784, 16546848, 16922912, 17298976, 17675040, 18051104, 18427168, 18803232, 19179296, 19555360, 19931424, 20307488, 20683552, 21059616, 21435680, 21811744, 22187808, 22563872, 22939936, 23316000, 23692064, 24068128, 24444192, 24820256, 25196320, 25572384, 25948448, 26324512, 26700576, 27076640, 27452704, 27828768, 28204832, 28580896, 28956960, 29333024, 29709088, 30085152, 30461216, 30837280, 31213344, 31589408, 31965472, 32341536, 32717600, 33093664, 33469728 newfs: ioctl (WDINFO): /dev/ccd0c: can't rewrite disk label: No such process -- end log -- Before adding the ccd line to my kernel configuration file, I had attempted to run ccdconfig while using just the GENERIC kernel (also 5.0-RC3). I suppos e I shouldn't have been surprised that it didn't work: -- begin log -- # ccdconfig ccd0 128 CCDF_UNIFORM /dev/da2 /dev/da3 /dev/da4 /dev/da5 fatal kernel trap: trap entry = 0x4 (unaligned access fault) cpuid = 1 faulting va = 0xe4a000000ed opcode = 0x29 register = 0x1b pc = 0xfffffe0002bd1f1c ra = 0xfffffe0002bd1eec sp = 0xfffffe00140898a0 usp = 0x11fff9f8 curthread = 0xfffffc0017efe1f0 pid = 3658, comm = ccdconfig panic: trap cpuid = 1; boot() called on cpu#1 syncing disks, buffers remaining... panic: bwrite: buffer is not busy??? cpuid = 1; boot() called on cpu#1 Uptime: 18h56m35s Automatic reboot in 15 seconds - press a key on the console to abort -- end log -- -- Trevor Johnson To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030116035919.T30783-100000>