[1076] in linux-scsi channel archive
Re: aha1542 hangs when switching X <-> VT
daemon@ATHENA.MIT.EDU (Rick Johnson)
Fri Dec 6 10:10:39 1996
From: Rick Johnson <rickj@cebaf.gov>
To: Keith Owens <kaos@edison.dialix.com.au>
Cc: rickj@cebaf.gov
Date: Fri, 6 Dec 1996 15:09:15 GMT
Keith Owens wrote:
>
> aha1542c, 2.0.26, ELF, XFree86 312, S3 VLB, fvwm95-2, gcc 272.
>
> When switching from X to VT there is an intermittent problem where the
> 1542 will hang. The text below was typed by hand because the problem is
> so bad that nothing gets written to the logs.
>
> scsi : aborting command due to timeout : pid 4497 scsi 0 channel 0 id 0
> lun 0 0x0a 09 f3 6a 02 00
> scsi host 0 abort (pid 4???) timed out - resetting
> scsi bus is being reset for host 0 channel 0
> send bus device reset to target 0
> sending did_reset for target 0 (repeated several times)
> aha1542_intr_handle: unexpected interrupt
> tarstat=0 hastat=0 idlun=10 ccb#=5 (repeated with various ccb numbers)
>
> The sequence then repeats with different data at the end of the abort
> message
>
> 0x0a 08 88 2e 02 00
> 0x0a 0a b0 2a 02 00
> 0x08 06 c8 26 02 00
>
> The only way out is to reset the machine. If the sequence above is left
> alone it starts getting various ext2 errors (including bit map errors) and
> e2fsck usually finds major problems, even on areas that were not being
> written to.
>
> It's not the X S3 server because the standard SVGA server has the same
> problem. Switching VT to VT is not a problem. It's not the drive because
> it can occur for any drive, including the CDROM. It is not recent, 2.0.18
> has the same problem. DMA has been set to the lowest value, 3.3MB. The
> aha1542 diagnostics show nothing wrong with the card nor with the disks.
> syslog shows intermittent "aha1542.c: interrupt received, but no mail" but
> the system recovers from these.
>
> I tried setting DISABLE_KBD_DURING_INTERRUPTS in drivers/char/keyboard.c,
> it seems to reduce the problem, although it is difficult to tell with an
> intermittent fault. SCSI probe messages follow
>
> Configuring Adaptec (SCSI-ID 7) at IO:330, IRQ 10, DMA priority 6
> scsi0 : Adaptec 1542
> scsi : 1 host.
> Vendor: IBM Model: DORS-32160 Rev: WA6A
> Type: Direct-Access ANSI SCSI revision: 02
> Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
> Vendor: MATSHITA Model: CD-ROM CR-533 Rev: 1.3a
> Type: CD-ROM ANSI SCSI revision: 02
> Detected scsi CD-ROM sr0 at scsi0, channel 0, id 3, lun 0
> Vendor: MICROP Model: 3243-19 1128RA Rev: 28RA
> Type: Direct-Access ANSI SCSI revision: 02
> Detected scsi disk sdb at scsi0, channel 0, id 4, lun 0
> scsi : detected 1 SCSI cdrom 2 SCSI disks total.
> SCSI device sda: hdwr sector= 512 bytes. Sectors= 4226725 [2063 MB] [2.1 GB]
> SCSI device sdb: hdwr sector= 512 bytes. Sectors= 8388315 [4095 MB] [4.1 GB]
> Partition check:
> sda: sda1 sda2 < sda5 sda6 sda7 sda8 sda9 >
> sdb: sdb1 sdb2 < sdb5 sdb6 sdb7 sdb8 >I too have a problem where my 1542 hangs, but in different
circumstances. I have a Plasmon PD2000E phase change optical drive that
is produced by Matshita, and whenever I try to mount it my 1542 hangs
on the NEXT command after the mount command. As a total LINUX newbie
however, I am clueless as to why. Has anyone else ever been able to get
a Plasmon PD2000 to work with LINUX?
Rick J.
rickj@cebaf.gov
