Gary Wolfe <gpwolfe@xxxxxxxxxxxx> wrote:I fixed the double-oops caused by misaligned stack pointers, and the oops if kmem_cache_alloc is called with an misaligned stack pointer.
Asus P4C800 Deluxe w/2.4GHz P4 (no HT and not 800Mhz bus)
Tried test8 and, now, test9 and both exhibit same problem.
The issue seems to be related to the PnPBIOS support under the Plug and Play Kconfig category. When enabled I get a crash of the form:
Linux Plug and Play Support v0.97 (c) Adam Belay
PnPBIOS: Scanning system for PnP BIOS support...
PnPBIOS: Found PnP BIOS installation structure at 0xc00f5350
PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0x5f3a, dseg 0xf0000
general protection fault: 0000 [#1]
EIP: 0098:[<00002b60>] Not tainted
EIP is at 0x2b60
eax: 000023d6 ebx: 0000007a ecx: 00010000 edx: 00000001
esi: dfed244e edi: 0000006d ebp: dfed0000 esp: dfed9eda
Your stack pointer became misaligned. I thought Manfred fixed that?
You don't have nmi_watchdog enabled on the kernel boot command line