Messages in this thread | | | Date | Mon, 10 Nov 2003 16:39:48 +0100 | From | Jens Axboe <> | Subject | Re: PROBLEM: ide-cd panic with faulty disk and DMA enabled (2.6.0-test9) |
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On Mon, Nov 10 2003, Csaba Halasz wrote: > Hi! > > I have a DVD+RW disk that crashes the kernel every time I try to > read a particular area using my DVD-ROM drive with DMA enabled. > (The writer unit can read it back without any problems though.) > > IMHO the crash seems to be of a more general nature, > not related to DVD+RW. > > Linux version 2.6.0-test9 (hcs@defiant) (gcc version 3.3 (Debian)) #1 Sun Nov 9 14:08:41 CET 2003 > Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx > NFORCE: IDE controller at PCI slot 0000:00:09.0 > NFORCE: chipset revision 195 > NFORCE: not 100%% native mode: will probe irqs later > AMD_IDE: Bios didn't set cable bits correctly. Enabling workaround. > AMD_IDE: Bios didn't set cable bits correctly. Enabling workaround. > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx > AMD_IDE: 0000:00:09.0 (rev c3) UDMA100 controller on pci0000:00:09.0 > ide0: BM-DMA at 0xb800-0xb807, BIOS settings: hda:DMA, hdb:DMA > ide1: BM-DMA at 0xb808-0xb80f, BIOS settings: hdc:DMA, hdd:DMA > hda: Maxtor 5T040H4, ATA DISK drive > hdb: _NEC DVD+RW ND-1100A, ATAPI CD/DVD-ROM drive > Using anticipatory io scheduler > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 > hdc: Maxtor 5T040H4, ATA DISK drive > hdd: MATSHITADVD-ROM SR-8586, ATAPI CD/DVD-ROM drive > ide1 at 0x170-0x177,0x376 on irq 15 > end_request: I/O error, dev hdb, sector 0 > hdb: ATAPI 40X DVD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33) > Uniform CD-ROM driver Revision: 3.12 > end_request: I/O error, dev hdd, sector 0 > hdd: ATAPI 123X DVD-ROM drive, 512kB Cache, UDMA(33) > hdd: media error (bad sector): status=0x51 { DriveReady SeekComplete Error } > hdd: media error (bad sector): error=0x34 > end_request: I/O error, dev hdd, sector 7043320 > Buffer I/O error on device hdd, logical block 880415 > hdd: DMA timeout retry > hdd: timeout waiting for DMA > > Unable to handle kernel paging request at virtual address ddff7f74 > printing eip: > c0249af6 > *pde = 00076067 > *pte = 1dff7000 > Oops: 0000 [#1] > CPU: 0 > EIP: 0060:[<c0249af6>] Not tainted
Could you build the same kernel with CONFIG_DEBUG_INFO enabled, and then do a
# gdb vmlinux # l *0xc0249af6
for me? Thanks.
-- Jens Axboe
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