Date: Sat, 25 Dec 1999 18:50:28 -0500 (EST) From: Bill Paul <wpaul@skynet.ctr.columbia.edu> To: assar@sics.se (Assar Westerlund) Cc: bugs@freebsd.org, sos@freebsd.org Subject: Re: kern/15689: gdb on core-dump does not work on current-19991225 Message-ID: <199912252350.SAA17183@skynet.ctr.columbia.edu> In-Reply-To: <5logbe6bz5.fsf@assaris.sics.se> from "Assar Westerlund" at Dec 25, 99 08:45:34 pm
next in thread | previous in thread | raw e-mail | index | archive | help
Of all the gin joints in all the towns in all the world, Assar Westerlund had to walk into mine and say: > ata-pci0: <Intel PIIX3 ATA controller> at device 7.1 on pci0 > ata-pci0: Busmastering DMA supported > ata0 at 0x01f0 irq 14 on ata-pci0 > ata-isa0: already registered as ata0 > ad0: <IBM-DSOA-20810/A91C53> ATA-3 disk at ata0 as master > ad0: 775MB (1587600 sectors), 1575 cyls, 16 heads, 63 S/T, 512 B/S > ad0: 16 secs/int, 1 depth queue, DMA This is your problem. Crash dumps are broken with the ata driver. Again. No, it's not a gdb problem: gdb -k /kernel /dev/mem still works fine. I just tested it on my Dec. 21st snapshot on my laptop (I'm still trying to track down some bugs in the USB code) and had the same problem. I changed to using a kernel with the wd driver and it worked again. Basically, the crash dump generated by the ata driver is corrupt somehow. Unfortunately, I can't offer a fix: I have no ATA clues. I'm cc'ing this to sos@freebsd.org; hopefully he'll be able to track the problem down. -Bill -- ============================================================================= -Bill Paul (212) 854-6020 | System Manager, Master of Unix-Fu Work: wpaul@ctr.columbia.edu | Center for Telecommunications Research Home: wpaul@skynet.ctr.columbia.edu | Columbia University, New York City ============================================================================= "It is not I who am crazy; it is I who am mad!" - Ren Hoek, "Space Madness" ============================================================================= To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199912252350.SAA17183>