Mark Haverkamp wrote: > I got this panic when loading the aic94xx module. The adapter is > connected to an HP MSA50 SAS enclosure with 3 72GB SAS disks. > > Kernel 2.6.19-rc6-scsi-misc on an x86_64 <snip> > sas: task finished with resp:0x0, stat:0x89 > sas: sas_discover_sata() for device 500508b300a27a2c at 500508b300a27a2f:0xc returned 0xffffff06 > kobject_add failed for port-2:0:12 with -EEXIST, don't try to register things with the same name in the same directory. Your expander is reporting your SAS disks to aic94xx as SATA disks, which is why the sas_discover_sata fails. I don't know why it would do that... flaky hardware? I'm not really sure what to do when we're given bad information. > Kernel BUG at drivers/scsi/libsas/sas_expander.c:603 I believe this BUG is fixed by a few patches in aic94xx-sas. For sure you'll want the patch named "libsas: better error handling in sas_ex_discover_end_dev()" patch; see commit 82f6bc0849b6fce9a965dde11dd6f685adc7285e. There are some dependencies: e384a0bdd9d3abb5ba2f6eac9ac4d0ac61e1c6a1 -> 1f8787b198c4ba058a0bfc06c2ca7f301168a5dd -> 82f6bc0849b6fce9a965dde11dd6f685adc7285e. --D - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
