Hi,
I am testing drivers for whether they come up in a kexec situation.
For mptsas I found that it oopses on the insmod and fails to load.
I am using lkdtt to trigger kexec and this happened for
FS_DEVRW(exception.loop,overflow,panic) and INT_HARDWARE_ENTRY(bug,
exception.loop,overflow) crash points. This was on 2.6.21-rc1/x86_64.
Here is the oops:
Loading mptsas.ko module^M
Fusion MPT SAS Host driver 3.04.04^M
ACPI: PCI Interrupt 0000:08:00.0[A] -> GSI 16 (level, low) -> IRQ 16^M
mptbase: Initiating ioc0 bringup^M
mptbase: ioc0: WARNING - Unexpected doorbell active!^M
ioc0: SAS1068E: Capabilities={Initiator}^M
PCI: Setting latency timer of device 0000:08:00.0 to 64^M
[-- MARK -- Thu Mar 1 08:30:00 2007]^M
Unable to handle kernel NULL pointer dereference at 00000000000004d8 RIP: ^M
[<ffffffff88004250>] :mptsas:mptsas_ioc_reset+0x35/0x93^M
PGD 8606067 PUD 8601067 PMD 0 ^M
Oops: 0000 [1] ^M
CPU 0 ^M
Modules linked in: mptsas^M
Pid: 961, comm: insmod Not tainted 2.6.21-rc1-kdump #1^M
RIP: 0010:[<ffffffff88004250>] [<ffffffff88004250>]
:mptsas:mptsas_ioc_reset+0x35/0x93^M
RSP: 0000:ffff8100086159d8 EFLAGS: 00010206^M
RAX: 00000000000004d8 RBX: ffff810008b3d000 RCX: 000000000000000b^M
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff810008b3d000^M
RBP: 0000000000000000 R08: ffffffff814732d0 R09: ffff810008682900^M
R10: ffff81000861c000 R11: ffffffff8800421b R12: 0000000000000000^M
R13: 0000000000000000 R14: ffff810008615a18 R15: ffffc20000010001^M
FS: 000000000057b850(0063) GS:ffffffff814ce000(0000) knlGS:0000000000000000^M
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b^M
CR2: 00000000000004d8 CR3: 00000000085fa000 CR4: 00000000000006e0^M
Process insmod (pid: 961, threadinfo ffff810008614000, task ffff810008f30040)^M
Stack: ffff810008b3d008 ffff810008b3d000 000000000000000b ffffffffffffffe0^M
ffff810008c20870 ffffffff812300ee 00000000000106c0 0000000100000000^M
0000000000100100 0000000000200200 0000000000000000 0000000000200200^M
Call Trace:^M
[<ffffffff812300ee>] mpt_do_ioc_recovery+0xfe5/0x109b^M
[<ffffffff8123029f>] mpt_timer_expired+0x0/0x24^M
[<ffffffff81025357>] vprintk+0x22d/0x24c^M
[<ffffffff81047aca>] __alloc_pages+0x61/0x2a8^M
[<ffffffff81121a9e>] vsnprintf+0x557/0x59b^M
[<ffffffff81121bed>] sprintf+0x51/0x59^M
[<ffffffff8101483b>] mp_register_gsi+0x30/0xe5^M
[<ffffffff81231e6b>] mpt_attach+0x56a/0x686^M
[<ffffffff880042c4>] :mptsas:mptsas_probe+0x16/0x3df^M
[<ffffffff810962fa>] sysfs_make_dirent+0x29/0x38^M
[<ffffffff8112b76d>] pci_device_probe+0x4c/0x75^M
[<ffffffff8117c89a>] really_probe+0xc4/0x148^M
[<ffffffff8117cacb>] __driver_attach+0x6d/0xab^M
[<ffffffff8117ca5e>] __driver_attach+0x0/0xab^M
[<ffffffff8117ca5e>] __driver_attach+0x0/0xab^M
[<ffffffff8117bd72>] bus_for_each_dev+0x43/0x6e^M
[<ffffffff8117c0b4>] bus_add_driver+0x6b/0x18d^M
[<ffffffff8112b90b>] __pci_register_driver+0x72/0xa7^M
[<ffffffff8103bc10>] sys_init_module+0x1195/0x12e6^M
[<ffffffff8100913e>] system_call+0x7e/0x83^M
^M
^M
Code: 48 83 bd d8 04 00 00 00 74 49 4c 8d a5 a8 07 00 00 4c 39 a5 ^M
RIP [<ffffffff88004250>] :mptsas:mptsas_ioc_reset+0x35/0x93^M
RSP <ffff8100086159d8>^M
CR2: 00000000000004d8^M
Trying to resume from LABEL=SWAP^M
No suspend signature on swap, not resuming.^M
Check if /proc/vmcore exists:^M
Check if /proc/vmcore is readable:^M
sleep to be sure hardware is ready^M
mount -t ext3 /dev/sdc /dump^M
mount: could not find filesystem '/dev/sdc'^M
Thanks,
Judith Lebzelter
_______________________________________________
fastboot mailing list
[email protected]
https://lists.osdl.org/mailman/listinfo/fastboot
