Ingo Molnar wrote:
right now i'm trying to bisect this crash on 64-bit:
Calling initcall 0xffffffff80395877: pci_init+0x0/0x2b()
------------[ cut here ]------------
kernel BUG at arch/x86/mm/pageattr_64.c:176!
[...]
Call Trace:
[<ffffffff8021db68>] change_page_attr_addr+0x9e/0x119
[<ffffffff8021d44f>] ioremap_change_attr+0x49/0x58
[<ffffffff8021d626>] iounmap+0xbe/0xe0
[<ffffffff804dfc95>] quirk_usb_early_handoff+0x396/0x3a5
[<ffffffff80396ea0>] pci_fixup_device+0x90/0x9e
[<ffffffff80395889>] pci_init+0x12/0x2b
[<ffffffff808c9545>] kernel_init+0xd0/0x23c
[<ffffffff8020bec8>] child_rip+0xa/0x12
[<ffffffff808c9475>] kernel_init+0x0/0x23c
[<ffffffff8020bebe>] child_rip+0x0/0x12
config and bootlog attached.
it's one of these patches:
Subject: x86: move all asm/pgtable constants into one place
Subject: x86: avoid name conflict for Voyager leave_mm
Subject: x86/pgtable: unify pagetable accessors
Hm, you got the same crash the with my last attempt at this. I'll take
a closer look at that first patch. The global flag differences between
32 and 64 bit was a bit weird.
J
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