> On Nov 15, 2016, at 5:14 PM, Uma Krishnan <ukrishn@xxxxxxxxxxxxxxxxxx> wrote: > > During test, the following crash was observed: > > [34538.981505] Faulting instruction address: 0xd000000007c9c870 > cpu 0x9: Vector: 300 (Data Access) at [c0000007f1e8f590] > pc: d000000007c9c870: cxlflash_restore_luntable+0x70/0x1d0 [cxlflash] > lr: d000000007c9c84c: cxlflash_restore_luntable+0x4c/0x1d0 [cxlflash] > sp: c0000007f1e8f810 > msr: 9000000100009033 > dar: c00000171d637438 > dsisr: 40000000 > current = 0xc0000007f1e43f90 > paca = 0xc000000007b25100 softe: 0 irq_happened: 0x01 > pid = 493, comm = eehd > enter ? for help > [c0000007f1e8f8a0] d000000007c940b0 init_afu+0xd60/0x1200 [cxlflash] > [c0000007f1e8f9a0] d000000007c945a8 cxlflash_pci_slot_reset+0x58/0xe0 [cxlflash] > [c0000007f1e8fa20] d00000000715f790 cxl_pci_slot_reset+0x230/0x340 [cxl] > [c0000007f1e8fae0] c000000000040dd4 eeh_report_reset+0x144/0x180 > [c0000007f1e8fb20] c00000000003f708 eeh_pe_dev_traverse+0x98/0x170 > [c0000007f1e8fbb0] c000000000041618 eeh_handle_normal_event+0x328/0x410 > [c0000007f1e8fc30] c000000000041db8 eeh_handle_event+0x178/0x330 > [c0000007f1e8fce0] c000000000042118 eeh_event_handler+0x1a8/0x1b0 > [c0000007f1e8fd80] c00000000011420c kthread+0xec/0x100 > [c0000007f1e8fe30] c00000000000a47c ret_from_kernel_thread+0x5c/0xe0 > > When superpipe mode is disabled for a LUN, the references for the > local lun are deleted but the LUN is still identified as being present > in the LUN table. This mismatched state can result in the above crash > when the LUN table is restored during an error recovery operation. > > To fix this issue, the local LUN information structure is updated to > reflect the LUN is no longer in the LUN table once all references to > the LUN are gone. > > Signed-off-by: Uma Krishnan <ukrishn@xxxxxxxxxxxxxxxxxx> Acked-by: Matthew R. Ochs <mrochs@xxxxxxxxxxxxxxxxxx> -- 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
