Date: Wed, 27 Aug 2003 14:58:51 -0400 (EDT) From: Andre Guibert de Bruet <andy@siliconlandmark.com> To: Lee Damon <nomad@castle.org> Cc: current@freebsd.org Subject: Re: recent 5.1-CURRENT kernel panics on acd0 probe/attach, IBM T30 laptop Message-ID: <20030827145635.D452@alpha.siliconlandmark.com> In-Reply-To: <200308271755.h7RHt5nx043212@castle.org> References: <200308271755.h7RHt5nx043212@castle.org>
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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@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/ >
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