Messages in this thread |  | | Date | Mon, 12 Nov 2001 17:24:27 -0200 (BRST) | From | Marcelo Tosatti <> | Subject | Re: I/O lockup |
| |
Well, Arjan just told me that qla2x00 is doing weird shit. He seems to be fixing it...
On Mon, 12 Nov 2001, Marcelo Tosatti wrote:
> > > On Mon, 12 Nov 2001, Gord R. Lamb wrote: > > > Hi everyone, > > > > I've been having a problem for a while now with a strange lockup induced > > under heavy SCSI I/O (particularly when I write directly to block devices > > with dd of=/dev/sd?, but also when writing to a filesystem on that > > device). I'm writing around 50-100mb/sec over FC (qlogic 2200) under > > Linux 2.4 (tried 2.4.3 through 2.4.10). > > > > It seems that some vm or I/O related spinlock is being taken and held, but > > not released (?). There is no oops or BUG() or anything (no messages at > > all in fact).. all I/O just stops. I can still invoke sysrq, type > > characters at the console, etc. In fact, usually top continues to run and > > display kswapd as the dominant process. > > If kswapd is eating the CPU, its probably a VM problem. > > Please try the newest 2.4.xx which has VM updates and if the problem > happens again, tell us. > > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |