recent 5.1-CURRENT kernel panics on acd0 probe/attach, IBM T30
laptop
Andre Guibert de Bruet
andy at siliconlandmark.com
Wed Aug 27 11:59:14 PDT 2003
On Wed, 27 Aug 2003, Lee Damon wrote:
> : || tylendel.castle.org [10] ; uname -a
> FreeBSD tylendel.castle.org 5.1-CURRENT FreeBSD 5.1-CURRENT #38: Wed Aug 27 09:05:21 PDT 2003 root at tylendel.castle.org:/users/FreeBSD-5.0/obj/users/FreeBSD-5.0/src/sys/TYLENDEL i386
>
> The kernel I compiled on 20 AUG recognizes acd0 and loggs the following:
>
> Aug 27 08:24:10 tylendel kernel: acd0: CD-RW <UJDA720 DVD/CDRW> at ata1-master U
> DMA33
> Aug 27 08:24:10 tylendel kernel: cd0 at ata1 bus 0 target 0 lun 0
> Aug 27 08:24:10 tylendel kernel: cd0: <MATSHITA UJDA720 DVD/CDRW 1.03> Removable
> CD-ROM SCSI-0 device
> Aug 27 08:24:10 tylendel kernel: cd0: 33.000MB/s transfers
> Aug 27 08:24:10 tylendel kernel: cd0: Attempt to query device size failed: NOT R
> EADY, Medium not present - tray closed
>
> However, kernels compiled since Monday's SUP get as far as the initial
> discovery of the acd0 device and then panic with:
>
> fatal trap 12: page fault while in kernel mode
> fault virtual address = 0x0
> fault code = supervisor write, page not present
> instruction pointer = 0x8 :0xc015ca8e
> stack pointer = 0x10 :0xdd79aaac
> frame pointer = 0x10 :0xdd79aab8
> code segment = base 0x0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, def 32 1, gran 1
> processor eflags = interrupt enabled, resume, IOPL=0
> current process = 19 (swi 3: cambio)
> kernel: type 12 trap, code=0
> Stopped at free_hcb+0x2e: mov1 %eax,0(xedx)
>
> When I remove the DVD/CDRW from the system it boots.
Try booting with an ISO 9660 image in the drive. Does it make any
difference?
I've spotted this behavior with a brand-new SONY DRU-510A (Version "BA").
Regards,
> Andre Guibert de Bruet | Enterprise Software Consultant >
> Silicon Landmark, LLC. | http://siliconlandmark.com/ >
More information about the freebsd-current
mailing list