Re: qla2xyz broken in current Linus tree

[Seokmann Ju <seokmann.ju@qlogic.com>]

Matthew Wilcox wrote:
> Reverting 281afe1947d855661754850de29d7530b2ff18dc fixes this panic:
It turned out that one of changes didn't committed into local git tree that is being used to generate the patch.
I'm sorry for creating a serious problem on the kernel.
The patch that fixes the problem will be submitted, soon.

Regards,
Seokmann
> 
> qla2xxx 0000:42:07.0: Found an ISP2322, irq 19, iobase 0xf8812000
> qla2xxx 0000:42:07.0: Configuring PCI space...
> qla2xxx 0000:42:07.0: Configure NVRAM parameters...
> BUG: unable to handle kernel NULL pointer dereference at virtual address 0000000
> 0
>  printing eip:
> c02e88f6
> *pde = 00000000
> Oops: 0002 [#1]
> PREEMPT SMP
> Modules linked in:
> CPU:    0
> EIP:    0060:[<c02e88f6>]    Not tainted VLI
> EFLAGS: 00010202   (2.6.23-rc1-g33eff927 #109)
> EIP is at qla2x00_read_nvram_data+0x23/0x55
> eax: 00005349   ebx: 00000000   ecx: e2de3d63   edx: 00000035
> esi: c1a0e2ec   edi: 00000000   ebp: 00000000   esp: c1903da0
> ds: 007b   es: 007b   fs: 00d8  gs: 0000  ss: 0068
> Process swapper (pid: 1, ti=c1902000 task=c1901670 task.ti=c1902000)
> Stack: 00000000 c02e88d3 00000000 c1a0e2ec 00000000 c02d99d1 00000100 00000038
>        f7e80000 00000000 00000000 00000024 c1a0e2ec c1a0e2ec c1a0e2ec c1958000
>        c1aded14 c1a0e2ec c1a0e2ec f8812000 c02d8048 c050e7ad c050cf76 c1aded14
> Call Trace:
>  [<c02e88d3>] qla2x00_read_nvram_data+0x0/0x55
>  [<c02d99d1>] qla2x00_nvram_config+0x7e/0x765
>  [<c02d8048>] qla2x00_initialize_adapter+0x113/0x226
>  [<c02d4ad9>] qla2x00_probe_one+0x8b0/0xc87
>  [<c01961b7>] sysfs_ilookup_test+0x0/0xd
>  [<c01961b7>] sysfs_ilookup_test+0x0/0xd
>  [<c019669d>] sysfs_addrm_finish+0x13/0x1d9
>  [<c01976bc>] sysfs_create_link+0xf1/0x149
>  [<c0130a9e>] call_usermodehelper_exec+0xab/0xb5
>  [<c023744a>] pci_match_device+0x84/0xa4
>  [<c02374b6>] pci_device_probe+0x36/0x57
>  [<c028cac3>] driver_probe_device+0xe1/0x15f
>  [<c044f795>] klist_next+0x58/0x6d
>  [<c028cbd3>] __driver_attach+0x0/0x7f
>  [<c028cc1c>] __driver_attach+0x49/0x7f
>  [<c028c076>] bus_for_each_dev+0x33/0x55
>  [<c028c91b>] driver_attach+0x16/0x18
>  [<c028cbd3>] __driver_attach+0x0/0x7f
>  [<c028c360>] bus_add_driver+0x6d/0x170
>  [<c02375ff>] __pci_register_driver+0x52/0x7e
>  [<c05bf2ef>] qla2x00_module_init+0xd4/0xfe
>  [<c05a746a>] kernel_init+0x140/0x2a2
>  [<c0120d6e>] schedule_tail+0x2e/0x81
>  [<c0103db6>] ret_from_fork+0x6/0x1c
>  [<c05a732a>] kernel_init+0x0/0x2a2
>  [<c05a732a>] kernel_init+0x0/0x2a2
>  [<c0104ae7>] kernel_thread_helper+0x7/0x10
>  =======================
> Code: 83 c4 10 5b 5e 5f 5d c3 55 57 56 53 83 ec 04 89 c6 89 14 24 89 cf e8 a4 e2
>  ff ff 31 ed 8b 1c 24 eb 11 89 fa 89 f0 e8 21 e1 ff ff <66> 89 03 45 83 c3 02 47
>  8b 44 24 18 d1 e8 39 c5 72 e5 8b 86 88
> EIP: [<c02e88f6>] qla2x00_read_nvram_data+0x23/0x55 SS:ESP 0068:c1903da0
> Kernel panic - not syncing: Attempted to kill init!
>