My SMP highmem Athlon did the following (further details on request):
kernel BUG at arch/i386/mm/highmem.c:40!
invalid operand: 0000
autofs4 usbtest ohci-hcd r128 agpgart 3c59x af_packet iptable_filter ip_tables floppy mousedev hid usbcore rtc unix
CPU: 1
EIP: 0060:[<c011ca7a>] Not tainted
EFLAGS: 00010206
EIP is at kmap_atomic+0x4a/0x90
eax: c0004f34 ebx: fffcd000 ecx: c2117708 edx: 6d62d163
esi: 0000000f edi: 0000004c ebp: 00001000 esp: f5821ec8
ds: 0068 es: 0068 ss: 0068
Process crond (pid: 2353, threadinfo=f5820000 task=f7756040)
Stack: f5612400 00000000 c013cc8a c2117708 0000000f fffcd000 fffcb000 f74dd640
c0455edc c2117708 f5612400 40413000 40014000 c013cecf c0455edc f5612400
40013000 00001000 c0455edc 40013000 f5612404 40014000 c0455edc c013cf63
Call Trace:
[<c013cc8a>] zap_pte_range+0xaa/0x240
[<c013cecf>] zap_pmd_range+0xaf/0x100
[<c013cf63>] unmap_page_range+0x43/0x70
[<c0140b80>] unmap_region+0xf0/0x180
[<c0140efc>] do_munmap+0x17c/0x210
[<c0140fe9>] sys_munmap+0x59/0x80
[<c0109773>] syscall_call+0x7/0xb
Code: 0f 0b 28 00 64 a4 30 c0 2b 0d 8c 31 48 c0 c1 f9 03 69 c9 cd
<6>note: crond[2353] exited with preempt_count 4
Debug: sleeping function called from illegal context at include/linux/rwsem.h:44
Call Trace:
[<c01244a0>] profile_exit_task+0x20/0x60
[<c012817a>] do_exit+0x7a/0x320
[<c0268156>] unblank_screen+0x26/0x100
[<c010a930>] do_invalid_op+0x0/0x70
[<c010a7c8>] die+0xe8/0xf0
[<c010a997>] do_invalid_op+0x67/0x70
[<c011ca7a>] kmap_atomic+0x4a/0x90
[<c014d5cc>] buffered_rmqueue+0xcc/0x1e0
[<c0149ebf>] cache_free_debugcheck+0x12f/0x1b0
[<c0148f09>] __cache_free+0x39/0x80
[<c010a1b5>] error_code+0x2d/0x38
[<c011ca7a>] kmap_atomic+0x4a/0x90
[<c013cc8a>] zap_pte_range+0xaa/0x240
[<c013cecf>] zap_pmd_range+0xaf/0x100
[<c013cf63>] unmap_page_range+0x43/0x70
[<c0140b80>] unmap_region+0xf0/0x180
[<c0140efc>] do_munmap+0x17c/0x210
[<c0140fe9>] sys_munmap+0x59/0x80
[<c0109773>] syscall_call+0x7/0xb
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This archive was generated by hypermail 2b29 : Wed Oct 23 2002 - 22:00:27 EST