Bad pte = e900b50d, process = ???

[Soeren Sonnenburg <kernel@nn7.de>]

Dear all,

I suddenly got flodded with

Bad pte = e900b50d, process = ???, vm_flags = 100173, vaddr = bfc87ee2
 [<c0146ae9>] vm_normal_page+0x3e/0x53
 [<c0146f6a>] follow_page+0x90/0x147
 [<c01483d3>] get_user_pages+0x20f/0x261
 [<c0148e7c>] access_process_vm+0x7e/0x163
 [<c014a8af>] vma_merge+0x171/0x17f
 [<c0189509>] proc_pid_cmdline+0x57/0xe7
 [<c0189f73>] proc_info_read+0x4a/0x9c
 [<c0189f29>] proc_info_read+0x0/0x9c
 [<c0157a56>] vfs_read+0xa6/0x128
 [<c0157dc0>] sys_read+0x41/0x67
 [<c0103ce6>] syscall_call+0x7/0xb
 =======================

until the machine become unresponsive... 

Has anyone seen this before/what are the reasons for this ?

This is on kernel 2.6.22.1...

Soeren
-- 
Sometimes, there's a moment as you're waking, when you become aware of
the real world around you, but you're still dreaming.
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