Kernel 2.6.x hangs with Symbios Logic 53c1010 Ultra3 SCSI Adapter

I've tried now Kernel 2.6.10-rc1-bk15 with following two patches:
http://marc.theaimsgroup.com/?l=linux-scsi&m=109840610525441&w=2
http://marc.theaimsgroup.com/?l=linux-scsi&m=109844985008496&w=2

The patches applied perfectly. But the system doesn't boot up.

I've tried also on the working Kernel 2.6.9 (with drivers from 2.6.1) to set the following bootparams: sym53c8xx=sync:10

But it didn't change anything. Same poor performance as before.

Did I set this wrong? What would be the right way to set the speed manually?

Here is a dmesg output from 2.4.27 with normal performance (30 MB/s):

sym53c8xx: at PCI bus 0, device 8, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: 53c1010-33 detected with Symbios NVRAM
sym53c8xx: at PCI bus 0, device 8, function 1
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: 53c1010-33 detected with Symbios NVRAM
sym53c1010-33-0: rev 0x1 on pci bus 0 device 8 function 0 irq 9
sym53c1010-33-0: Symbios format NVRAM, ID 7, Fast-80, Parity Checking
sym53c1010-33-0: on-chip RAM at 0xf9000000
sym53c1010-33-0: restart (scsi reset).
sym53c1010-33-0: handling phase mismatch from SCRIPTS.
sym53c1010-33-0: Downloading SCSI SCRIPTS.
sym53c1010-33-1: rev 0x1 on pci bus 0 device 8 function 1 irq 11
sym53c1010-33-1: Symbios format NVRAM, ID 7, Fast-80, Parity Checking
sym53c1010-33-1: on-chip RAM at 0xf8000000
sym53c1010-33-1: restart (scsi reset).
sym53c1010-33-1: handling phase mismatch from SCRIPTS.
sym53c1010-33-1: Downloading SCSI SCRIPTS.
scsi0 : sym53c8xx-1.7.3c-20010512
scsi1 : sym53c8xx-1.7.3c-20010512
blk: queue f7e9bc18, I/O limit 1048575Mb (mask 0xffffffffff)
Vendor: QUANTUM Model: ATLAS10K2-TY367J Rev: DDD6
Type: Direct-Access ANSI SCSI revision: 03
blk: queue f7e9ba18, I/O limit 1048575Mb (mask 0xffffffffff) sym53c1010-33-0-<2,0>: tagged command queue depth set to 4 Attached scsi disk sda at scsi0, channel 0, id 2, lun 0 sym53c1010-33-0-<2,*>: FAST-40 SCSI 40.0 MB/s (25.0 ns, offset 31) SCSI device sda: 71721820 512-byte hdwr sectors (36722 MB) Partition check:
sda: sda1 sda2

Thanks.

Regards,
Thomas Babut

There are two LSI Logic drivers in lk 2.4.27: sym53c8xx and sym53c8xx_2. You are using the older sym53c8xx driver here. In 2.6.x, only sym53c8xx_2 exists. So you changed two variables at once:

sym53c8xx -> sym53c8xx_2
lk 2.4.27 -> lk 2.6.x

It might be useful to know how sym53c8xx_2 behaves in lk 2.4.27.

Anthony J. Battersby
Cybernetics