Distribution: Debian Hardware Environment: i386 Problem Description: The following is an extract of the report archived at http://bugs.debian.org/241963. It was submitted by David Cohrs. Over the past few weeks, I've had problems with both an Adaptec AIC-29320 and an AIC-29320A card. On the same system, using an AIC-29160 card has no problems. Given that I've had similar problems with 2 different cards using the aic79xx driver, this makes me think the problem is with the driver not the hardware. I should note that I've experienced these problems not only with kernel-image-2.6.4-1-686, but also the 2.6.3 image, and the 2.4.24 image. I had the card plugged into PCI-32 slots on the Intel D865GBF motherboard. I had 4 Maxtor ATLASU320_73_WLS Rev: B430 drives connected to the internal LVD connector using an U320-rated cable (I tried replacing the cable and terminator just to be sure; that had no effect either). I also had an old HP C5683A tape drive connected to the internal SE connector part of the time. My /etc/modules-2.6 contained sd_mod ide-cd ide-detect aic79xx uhci-hcd md intel-agp pcspkr I have RAID-5 configured on the 4 SCSI drives using the md driver. Here's what the kernel reported on this card when it booted this morning, as per kern.log: <see attachment> Occasionally, the driver seems to lose track of command completions. Usually, after some retries, it recovers from this situation, although often afterward, as shown below, it degrades the speed of one or more of the drives (also, I noticed that the "RTI" flag was no longer set according to the driver output after recovery completed). In one case a week ago, however, two or more commands queued for different drives timed out, causing the MD driver to mark the array as failed. It was, in fact, OK. Ie, after a reboot, forcing the array to re-assemble, and running fsck, I inspected the parts of the filesystem being accessed at the time, and it was all fine. I've never had problems accessing the tape drive. I'm including the driver output captured from kern.log from a failure this afternoon. The system operated fine for about 3 hours before this failure. After this failure, several additional similar failures occurred at irregular intervals (e.g. 8 minutes later, then again about 8 minutes after that). The drive involved varied. At the time, I was inducing load on the system by tar'ing the contents of the filesytem on the RAID array to the tape drive, although I've also had problems when not using the tape drive at all (once, just running "ls" on a directory caused the problem to occur). I'll try to provide addtional information if requested, however, I've stopped using the AIC-29320A card (ie. the drives have been moved to the AIC-29160 card and the AIC-29320A has been removed from the system) and no longer have access to the AIC-29220 card. If I find someone I can borrow a couple SCSI drives from, I'll be able to test the AIC-29320A again. <see attachment>
Created attachment 2490 [details] Kernel log 1
Created attachment 2491 [details] Kernel log 2
Is this issue still present with recent kernels?
Please reopen this bug if it's still present with kernel 2.6.20.