twa0 errors and system lockup on amd64

[Jung-uk Kim]

On Monday 08 August 2005 05:03 pm, Josh Endries wrote:
> Hello,
>
> Just a little while ago I got this on a test 5.4-stable dual
> Opteron box I'm setting up (9500S-LP RAID 5 with a hot spare):
>
> Aug  8 15:58:21 kernel: twa0: ERROR: (0x05: 0x210b): Request timed
> out!: request = 0xffffffff80a67700
> Aug  8 15:58:21 kernel: twa0: INFO: (0x16: 0x1108): Resetting
> controller...:
> Aug  8 15:58:21 kernel: twa0: ERROR: (0x15: 0x110b): Can't drain
> AEN queue after reset: error = 60
> Aug  8 15:58:21 kernel: twa0: ERROR: (0x16: 0x1105): Controller
> reset failed: error = 60; attempt 1
>
> It attempted twice and then just sat there after that. I couldn't
> log in at all so I did a hard reset after probably 30+ minutes. I
> didn't find much online other than driver source code or twe(4) man
> pages, which suggests that it's a problem between the driver and
> card. Has anyone else seen this problem? Is it a sign of a flaky
> card or could it be something else? Maybe it's something to do with
> AMD64? This system was supposed to go into production tomorrow. I
> guess it's good that it died today...

I have seen it with 9500S-8, which is the same controller with 8 
ports.  In fact, I am seeing other problems.

twa0: INFO: (0x04: 0x000b): Rebuild started: unit=0
twa0: ERROR: (0x04: 0x0002): Degraded unit: unit=0, port=5
twa0: INFO: (0x04: 0x000b): Rebuild started: unit=0
twa0: INFO: (0x04: 0x003b): Rebuild paused: unit=0
twa0: INFO: (0x04: 0x000b): Rebuild started: unit=0
twa0: ERROR: (0x04: 0x0009): Drive timeout detected: port=5
twa0: INFO: (0x04: 0x003b): Rebuild paused: unit=0
twa0: INFO: (0x04: 0x000b): Rebuild started: unit=0
twa0: ERROR: (0x04: 0x0009): Drive timeout detected: port=5
twa0: INFO: (0x04: 0x0005): Rebuild completed: unit=0
twa0: ERROR: (0x04: 0x0009): Drive timeout detected: port=5
twa0: ERROR: (0x04: 0x0002): Degraded unit: unit=0, port=5

I have rebuilt this array many times but it's happening again and 
again.  It seems this controller/driver has issues with amd64.  FYI, 
UP kernel or replacing cables didn't fix the problem.

Good luck,

Jung-uk Kim

> Josh