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SubjectSCSI Timeout, but no bus reset
Hello,

Under heavy SCSI disk load, my 2.2.10 SMB (dual P133) box is showing this
error, but it never recovers. I haven't tried other kernels. I am using the
standard NCR53C8XX driver, not the SYM53C8XX driver, with the default settings.

scsi : aborting command due to timeout : pid 269291, scsi0, channel 0, id 0,
lun 0 Read (10) 00 00 2d f9 08 00 00 02 00

I would expect the driver to reset the SCSI card and recover, but it never
does, and the only thing left to do is to SysRq Boot.

Here is the relevant section of dmesg, let me know if you need more
information. I can get this to happen by simply doing a large copy (couple
hundred megabytes) between the two disks.

ncr53c8xx: at PCI bus 0, device 14, function 0
ncr53c8xx: 53c875 detected with Tekram NVRAM
ncr53c875-0: rev=0x03, base=0xfedff800, io_port=0xf800, irq=11
ncr53c875-0: Tekram format NVRAM, ID 7, Fast-20, Parity Checking
ncr53c875-0: on-chip RAM at 0xfedfe000
ncr53c875-0: restart (scsi reset).
ncr53c875-0: Downloading SCSI SCRIPTS.
scsi0 : ncr53c8xx - version 3.2
scsi : 1 host.
Vendor: HP Model: C3010 Rev: 0BB4
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
Vendor: SEAGATE Model: ST32430N Rev: 0320
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdb at scsi0, channel 0, id 3, lun 0
ncr53c875-0-<0,0>: tagged command queue depth set to 4
ncr53c875-0-<3,0>: tagged command queue depth set to 4
scsi : detected 2 SCSI disks total.
ncr53c875-0-<0,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
SCSI device sda: hdwr sector= 512 bytes. Sectors= 3912172 [1910 MB] [1.9 GB]
ncr53c875-0-<3,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 15)
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 4197405 [2049 MB] [2.0 GB]



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