Re: aic7xxx loading oops in 2.6.0-test10

[dick.streefland@xs4all.nl (Dick Streefland)]

Ken Witherow <ken@krwtech.com> wrote:
| On Mon, 24 Nov 2003, Burton Windle wrote:
| 
| > http://marc.theaimsgroup.com/?l=linux-scsi&m=106965748506343&w=2
| >
| > This one-liner fixed my hang-on-boot with my AIC7880.
| 
| This patch does indeed fix the hang for me

I can confirm that. My 2.6.0-test10 kernel was hanging between the IDE
and SCSI probes:

ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide2: I/O resource 0x3EE-0x3EE not free.
ide2: ports already in use, skipping probe
hda: max request size: 128KiB
hda: 25429824 sectors (13020 MB) w/418KiB Cache, CHS=25228/16/63, UDMA(33)
 hda: hda1 hda2 hda3 hda4
hdb: ATAPI 40X CD-ROM drive, 128kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.12
PCI: Enabling device 0000:00:14.0 (0000 -> 0003)
*** hang ***
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.35
        <Adaptec aic7890/91 Ultra2 SCSI adapter>
        aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs

The patch fixes the hang, but causes another problem:

scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.35
        <Adaptec aic7890/91 Ultra2 SCSI adapter>
        aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs

(scsi0:A:3): 10.000MB/s transfers (10.000MHz, offset 15)
Badness in kobject_get at /work/kernel/linux-2.6.0-test10/lib/kobject.c:439
Call Trace:
 [kobject_get+80/96] kobject_get+0x50/0x60
 [get_device+24/32] get_device+0x18/0x20
 [scsi_device_get+44/128] scsi_device_get+0x2c/0x80
 [__scsi_iterate_devices+75/128] __scsi_iterate_devices+0x4b/0x80
 [scsi_run_host_queues+23/80] scsi_run_host_queues+0x17/0x50
 [ahc_linux_release_simq+148/208] ahc_linux_release_simq+0x94/0xd0
 [ahc_linux_dv_thread+506/592] ahc_linux_dv_thread+0x1fa/0x250
 [ahc_linux_dv_thread+0/592] ahc_linux_dv_thread+0x0/0x250
 [kernel_thread_helper+5/12] kernel_thread_helper+0x5/0xc

  Vendor: YAMAHA    Model: CRW6416S          Rev: 1.0b
  Type:   CD-ROM                             ANSI SCSI revision: 02
  Vendor: ARCHIVE   Model: VIPER 150  21247  Rev: -005
  Type:   Sequential-Access                  ANSI SCSI revision: 01

The following patch seems to fix this second problem:

http://marc.theaimsgroup.com/?l=linux-scsi&m=106940008217622&w=2

-- 
Dick Streefland                    ////               De Bilt
dick.streefland@xs4all.nl         (@ @)       The Netherlands
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