Messages in this thread Patch in this message | | | Date | Thu, 13 Dec 2001 12:42:05 -0800 (PST) | Subject | that stupid aic7xxx AHC_NSEGS bug | From | "David S. Miller" <> |
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We simply forget to initialize scb->sg_count in the non use_sg case, so if the previous usage of that scb has sg_count==AHC_NSEGS then we'd hit that panic erroneously. Here is the fix below.
"It can't possibly be my driver, something broke in some Linux subsystem which is making my driver break", sheesh get over it Justin...
--- drivers/scsi/aic7xxx/aic7xxx_linux.c.~1~ Fri Dec 7 22:54:31 2001 +++ drivers/scsi/aic7xxx/aic7xxx_linux.c Thu Dec 13 12:38:30 2001 @@ -1699,6 +1699,7 @@ cmd->request_buffer, cmd->request_bufflen, scsi_to_pci_dma_dir(cmd->sc_data_direction)); + scb->sg_count = 0; scb->sg_count = ahc_linux_map_seg(ahc, scb, sg, addr, cmd->request_bufflen); - 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/
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