SYM53C8XX_2 driver issue - system unbootable

Issue: System hangs during boot.
Affected kernel versions: 2.6.6, 2.6.7; all earlier kernel versions I have tested work fine.
Workaround in use currently: Replace contents of drivers/scsi/sym53c8xx_2 in 2.6.7 with contents of same dir from 2.6.5

Here's a log(copied by hand, since log never was written to HDD and no serial to output data) of what happens when I boot an affected kernel:

sym0: <1010-33> rev 0x1 at PCI 0000:01:0a.0
sym0: Symbios NVRAM ID7, Fast 80 LVD, Parity Checking
sym0: Open drain IRQ line driver, using on chip SRAM
sym0: Handling phase mismatch from SCRIPTS
sym0: SCAN AT BOOT disabled for targets 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
sym0: SCAN FOR LUNS disabled for targets 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
sym0: SCSI bus has been reset
scsi0: sym-2.1.18j
Vendor: Quantum Model: ATLAS10K2-TY734J Rev: DDD6
Type: Direct-access ANSI SCSI revision: 03
sym0:0:0: Tagged command queue enabled, command queue depth 16 scsi(0:0:0:0): Wide asynchronous
sym0:0:0: ABORT operation started
sym0:0:0: ABORT operation timed out
sym0:0:0: DEVICE RESET operation started
sym0:0:0: DEVICE RESET operation timed out
sym0:0:0: BUS RESET operation started
sym0: SCSI BUS reset detected
sym0: SCSI BUS has been reset
sym0:0:0: BUS RESET operation complete
sum0:0:0: ABORT operation started
sum0:0:0: ABORT operation timed out
sym0:0:0: HOST RESET operation started
sym0: SCSI BUS has been reset
[Hangs]

And attached are a normal dmesg from booting with the kernel I compiled, after replacing the contents of drivers/scsi/sym53c8xx_2 with the same from 2.6.5; also attached is the .config file I used for BOTH of these kernels.

Hopefully somebody here can make more sense of this than I can.

Thanks in advance.

First, it is starting to look like this issue affects 53c1010 controllers in general.

Second, I mistyped part of the log.

Here is the corrected version:

sym0: <1010-33> rev 0x1 at PCI 0000:01:0a.0
sym0: Symbios NVRAM ID7, Fast 80 LVD, Parity Checking
sym0: Open drain IRQ line driver, using on chip SRAM
sym0: Handling phase mismatch from SCRIPTS
sym0: SCAN AT BOOT disabled for targets 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
sym0: SCAN FOR LUNS disabled for targets 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
sym0: SCSI bus has been reset
scsi0: sym-2.1.18j
Vendor: Quantum Model: ATLAS10K2-TY734J Rev: DDD6
Type: Direct-access ANSI SCSI revision: 03
sym0:0:0: Tagged command queue enabled, command queue depth 16 scsi(0:0:0:0): Beginning Domain Validation
sym0:0: Wide asynchronous
sym0:0:0: ABORT operation started
sym0:0:0: ABORT operation timed out
sym0:0:0: DEVICE RESET operation started
sym0:0:0: DEVICE RESET operation timed out
sym0:0:0: BUS RESET operation started
sym0: SCSI BUS reset detected
sym0: SCSI BUS has been reset
sym0:0:0: BUS RESET operation complete
sum0:0:0: ABORT operation started
sum0:0:0: ABORT operation timed out
sym0:0:0: HOST RESET operation started
sym0: SCSI BUS has been reset
[Hangs]

----- Original message -----
From: "Lance Dryden" <[email protected]>
To: "Kai OM" <[email protected]>
Date: Mon, 28 Jun 2004 10:34:46 -0400
Subject: Re: SYM53C8XX_2 driver issue - system unbootable

Good morning,

I have seen something similar to this. Any chance there is a line missing from your log, something that says "scsi0: Begin Domain Validation" or the like? My "fix" was to stub out domain validation code in:

drivers/scsi/scsi_transport_spi.c:~ line 572
"spi_dv_device_internal(sreq, buffer);"

and keep going.

But, so far only my 53c1010 (Tekram DC390U3W) is affected; I had occasion to replace the card with a 53c895 (Tekram DC390U2W) and a stock 2.6.7 kernel works fine on it.

Yours, &c,
Lance Dryden

P.S. If you feel this may be useful to the list (I personally don't, but...) feel free to quote parts of it as needed.

[snip]