On Wed, 2009-12-16 at 15:44 -0700, Moore, Eric wrote: > James - Is there a way to turn of the enclosure services from the > SCSI LLD, command line option, or some other method that doesn't > require recompiling the kernel? Assuming you built it as a module, then just remove the module. If you're using a monolithic kernel, there's no real way to influence the ULD binding apart from by disabling it. > The oops we are getting occurs on SLES11(2.6.27) when pulling the > cable on certain enclosures. I see this with a HP and Xyratex > enclosure. I don't see it on Engineo enclosures. On the enclosures > where it hangs, there are no slot subfolders > under /sys/class/enclosure. > > Apparently you have fixed this issue with the patch's that went into 2.6.32, e.g. > > ses: update enclosure data on hot add > http://marc.info/?l=linux-scsi&m=124908744713234&w=2 > ses: add support for enclosure component hot removal > http://marc.info/?l=linux-scsi&m=124908728913082&w=2 > ses: fix hotplug with multiple devices and expanders > http://marc.info/?l=linux-scsi&m=124908718512951&w=2 > > Here is the sg_ses output > > (1) Xyratex; FAILS > > XYRATEX RS1603-SAS-01 0605 > enclosure services device > Supported diagnostic pages: > Supported diagnostic pages [0x0] > Configuration (SES) [0x1] > Enclosure status/control (SES) [0x2] > String In/Out (SES) [0x4] > Threshold In/Out (SES) [0x5] > Element descriptor (SES) [0x7] > Additional element status (SES-2) [0xa] > <unknown> [0x80] > <unknown> [0x81] > <unknown> [0x84] > <unknown> [0x85] > <unknown> [0x88] > <unknown> [0x89] > > (2) HP: FAILS > > HP D2700 SAS AJ941A 0038 > enclosure services device > Supported diagnostic pages: > Supported diagnostic pages [0x0] > Configuration (SES) [0x1] > Enclosure status/control (SES) [0x2] > Threshold In/Out (SES) [0x5] > Element descriptor (SES) [0x7] > Additional element status (SES-2) [0xa] > Supported SES diagnostic pages (SES-2) [0xd] > <unknown> [0x11] > > (3) Engineo: WORKS > > LSI DE5300-SAS 0216 > enclosure services device > Supported diagnostic pages: > Supported diagnostic pages [0x0] > Configuration (SES) [0x1] > Enclosure status/control (SES) [0x2] > String In/Out (SES) [0x4] > Element descriptor (SES) [0x7] > Additional element status (SES-2) [0xa] > > > The backtrace below is from enclosure_unregister, seems its deleting a NULL pointer from device_pm_remove. > > > BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 So if you're sure it's fixed, what happens when you try with a current kernel? James -- 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
