Messages in this thread | | | Date | Tue, 23 Feb 2010 14:58:22 -0800 | From | Andrew Vasquez <> | Subject | Re: qla2xxx UNDERRUNS and failed multipath paths |
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On Tue, 23 Feb 2010, Andy wrote:
> I discovered I was easily able to trigger path failures in kernel 2.6.32.8. > Since I had known I had not had this problem in the 2.6.27 series kernels, I > bisected between 2.6.27 and 2.6.28 and found that the following commit > causes UNDERRUNS to turn into a serious problem. > > 2d136938792ba04bf3b6bb2d3a2807dc05c396fc - Additional residual-count > corrections during UNDERRUN handling > > HBA: QLA2460 (ISP2432) > FW: 4.04.05 (486) > > I have since tested 2.6.32.8 with and without the patch. > > I do have a few systems running kernels that have the patch that run fine, > but most they seem to be using newer HBAs (most qla2560/2562, but one is running > a qla2462 fw:4.04.05 (486)). >
Addressed here:
[SCSI] qla2xxx: Properly handle UNDERRUN completion statuses. http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=0f00a206ccb1dc644b6770ef25f185610fee6962
Regards, Andrew Vasquez
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