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SubjectRe: crash upon rmmod aic7xxx (pcmcia)
Kasper Peeters wrote:
> Since the early 2.6.x kernels, removing the aic7xxx module (either by
> doing a 'rmmod' by hand or by ejecting the pcmcia aic7xxx card) locks
> the system hard after about 2 seconds, leaving no trace in syslog.
> Just checked with kernel 2.6.13 (and pcmcia-tools 3.2.8).

Try enabling magic sysrq and press Alt+sysrq+9 then Alt+SysRq+P when the
freeze occurs, and write down the call trace which hopefully appears on the
console.

On a sidenote, this might be related to a Gentoo bug that I'm working on
getting full details of:

http://bugs.gentoo.org/show_bug.cgi?id=102636

> Upon insertion of the pcmcia card, this appears in syslog:
>
> Sep 11 14:36:05 whiteroom2 kernel: PCI: Enabling device 0000:03:00.0 (0000 -> 0003)
> Sep 11 14:36:05 whiteroom2 kernel: ACPI: PCI Interrupt 0000:03:00.0[A] -> Link [LNKA] -> GSI 11 (level, low
> ) -> IRQ 11
> Sep 11 14:36:05 whiteroom2 kernel: aic7xxx: PCI Device 3:0:0 failed memory mapped test. Using PIO.
> Sep 11 14:36:05 whiteroom2 kernel: ahc_pci:3:0:0: Host Adapter Bios disabled. Using default SCSI device pa
> rameters
> Sep 11 14:36:05 whiteroom2 kernel: scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
> Sep 11 14:36:05 whiteroom2 kernel: <Adaptec 1480A Ultra SCSI adapter>
> Sep 11 14:36:05 whiteroom2 kernel: aic7860: Ultra Single Channel A, SCSI Id=7, 3/253 SCBs
> Sep 11 14:36:05 whiteroom2 kernel:
> Sep 11 14:36:12 whiteroom2 kernel: scsi0: PCI error Interrupt at seqaddr = 0x8
> Sep 11 14:36:12 whiteroom2 kernel: scsi0: Signaled a Target Abort
> Sep 11 14:36:21 whiteroom2 kernel: Vendor: HP Model: CD-Writer+ 9200 Rev: 1.0c
> Sep 11 14:36:21 whiteroom2 kernel: Type: CD-ROM ANSI SCSI revision: 04
> Sep 11 14:36:21 whiteroom2 kernel: target0:0:4: asynchronous.
> Sep 11 14:36:21 whiteroom2 kernel: target0:0:4: Beginning Domain Validation
> Sep 11 14:36:21 whiteroom2 kernel: target0:0:4: Domain Validation skipping write tests
> Sep 11 14:36:21 whiteroom2 kernel: target0:0:4: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 15)
> Sep 11 14:36:21 whiteroom2 kernel: target0:0:4: Ending Domain Validation
> Sep 11 14:36:21 whiteroom2 kernel: sr0: scsi3-mmc drive: 32x/32x writer cd/rw xa/form2 cdda tray
> Sep 11 14:36:21 whiteroom2 kernel: Attached scsi generic sg0 at scsi0, channel 0, id 4, lun 0, type 5
> Sep 11 14:36:22 whiteroom2 scsi.agent[3014]: cdrom at /devices/pci0000:00/0000:00:1e.0/0000:02:0a.0/0000:03
> :00.0/host0/target0:0:4/0:0:4:0
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