I am seeing a panic on the latest git trees on my ia64 servers with
qlogic cards installed. The latest this was known to work OK was
v2.6.23-rc1. I am currently working on a git bisect to narrow down what
introduced this but due to other unrelated problems that is not going
smoothly. Let me know if there is other info I can provide that would
be helpful.
Here is what I do know:
Hardware info:
I am seeing this on multiple HP ia64 servers (don't know if this is ia64
specific since that is all I have). Here is what I see as the card is
seen on a good boot (I don't get this far on the current kernels):
qla2xxx 0000:80:02.0: Found an ISP2312, irq 68, iobase 0xc0000000c0041000
qla2xxx 0000:80:02.0: Configuring PCI space...
qla2xxx 0000:80:02.0: Configure NVRAM parameters...
qla2xxx 0000:80:02.0: Verifying loaded RISC code...
qla2xxx 0000:80:02.0: Allocated (412 KB) for firmware dump...
scsi2 : qla2xxx
qla2xxx 0000:80:02.0:
QLogic Fibre Channel HBA Driver: 8.02.00-k2
QLogic HP A6826-60001 -
ISP2312: PCI-X (66 MHz) @ 0000:80:02.0 hdma+, host#=2, fw=3.03.20 IPX
Appears the panic happens at drivers/scsi/qla2xxx/qla_sup.c:668
663
664 /* Word reads to NVRAM via registers. */
665 wptr = (uint16_t *)buf;
666 qla2x00_lock_nvram_access(ha);
667 for (i = 0; i < bytes >> 1; i++, naddr++)
668 wptr[i] = cpu_to_le16(qla2x00_get_nvram_word(ha,
669 naddr));
670 qla2x00_unlock_nvram_access(ha);
671
672 return buf;
Here is the full stack trace (note, this is from loading the module, not
from a static build but appears to be the same).
Unable to handle kernel NULL pointer dereference (address 0000000000000000)
ip is at qla2x00_read_nvram_data+0x61/0xe0 [qla2xxx]
Call Trace:
[<a000000100015260>] show_stack+0x40/0xa0
sp=e0000040f34a7770 bsp=e0000040f34a14b0
[<a000000100015b60>] show_regs+0x840/0x880
sp=e0000040f34a7940 bsp=e0000040f34a1458
[<a000000100038d20>] die+0x1a0/0x280
sp=e0000040f34a7940 bsp=e0000040f34a1410
[<a00000010066c570>] ia64_do_page_fault+0x8f0/0xa20
sp=e0000040f34a7940 bsp=e0000040f34a13b0
[<a00000010000ba00>] ia64_leave_kernel+0x0/0x270
sp=e0000040f34a79d0 bsp=e0000040f34a13b0
[<a00000021b7778a0>] qla2x00_read_nvram_data+0x60/0xe0 [qla2xxx]
sp=e0000040f34a7ba0 bsp=e0000040f34a1358
[<a00000021b74b310>] qla2x00_nvram_config+0x190/0x14e0 [qla2xxx]
sp=e0000040f34a7ba0 bsp=e0000040f34a12f8
[<a00000021b748070>] qla2x00_initialize_adapter+0x350/0x5a0 [qla2xxx]
sp=e0000040f34a7ba0 bsp=e0000040f34a12c0
[<a00000021b73d3c0>] qla2x00_probe_one+0x1620/0x1e60 [qla2xxx]
sp=e0000040f34a7bc0 bsp=e0000040f34a1228
[<a00000010030fd20>] pci_device_probe+0x260/0x3a0
sp=e0000040f34a7d10 bsp=e0000040f34a11d8
[<a000000100424e90>] driver_probe_device+0x250/0x380
sp=e0000040f34a7de0 bsp=e0000040f34a1198
[<a0000001004252a0>] __driver_attach+0x100/0x1a0
sp=e0000040f34a7de0 bsp=e0000040f34a1168
[<a000000100423260>] bus_for_each_dev+0x80/0x100
sp=e0000040f34a7de0 bsp=e0000040f34a1130
[<a000000100424a60>] driver_attach+0x40/0x60
sp=e0000040f34a7e00 bsp=e0000040f34a1110
[<a000000100423a50>] bus_add_driver+0xf0/0x3c0
sp=e0000040f34a7e00 bsp=e0000040f34a10d0
[<a000000100425800>] driver_register+0x140/0x160
sp=e0000040f34a7e00 bsp=e0000040f34a10b0
[<a0000001003101f0>] __pci_register_driver+0xd0/0x160
sp=e0000040f34a7e00 bsp=e0000040f34a1078
[<a00000021b304260>] qla2x00_module_init+0x260/0x400 [qla2xxx]
sp=e0000040f34a7e00 bsp=e0000040f34a1040
[<a0000001000e5f90>] sys_init_module+0x2db0/0x3160
sp=e0000040f34a7e00 bsp=e0000040f34a0ec0
[<a00000010000b860>] ia64_ret_from_syscall+0x0/0x20
sp=e0000040f34a7e30 bsp=e0000040f34a0ec0
[<a000000000010620>] __kernel_syscall_via_break+0x0/0x20
sp=e0000040f34a8000 bsp=e0000040f34a0ec0
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