On 2010.11.12 at 13:20 +0100, Markus Trippelsdorf wrote: > On 2010.11.10 at 15:46 -0600, Christoph Lameter wrote: > > On Wed, 10 Nov 2010, Markus Trippelsdorf wrote: > > > > > I found this in my dmesg: > > > ACPI: Local APIC address 0xfee00000 > > > [ffffea0000000000-ffffea0003ffffff] PMD -> [ffff8800d0000000-ffff8800d39fffff] on node 0 > > > > That only shows you how the memmap was virtually mapped. > > Yes. Fortunately the BUG is gone since I pulled the upcoming drm fixes No. I happend again today (with those fixes already applied): BUG: Bad page state in process knode pfn:7f0a8 page:ffffea0001bca4c0 count:0 mapcount:0 mapping: (null) index:0x0 page flags: 0x4000000000000008(uptodate) Pid: 18310, comm: knode Not tainted 2.6.37-rc1-00549-gae712bf-dirty #16 Call Trace: [<ffffffff810a9022>] ? bad_page+0x92/0xe0 [<ffffffff810aa240>] ? get_page_from_freelist+0x4b0/0x570 [<ffffffff8102e50e>] ? apic_timer_interrupt+0xe/0x20 [<ffffffff810aa413>] ? __alloc_pages_nodemask+0x113/0x6b0 [<ffffffff810a2dd4>] ? file_read_actor+0xc4/0x190 [<ffffffff810a4a70>] ? generic_file_aio_read+0x560/0x6b0 [<ffffffff810bdf8d>] ? handle_mm_fault+0x6bd/0x970 [<ffffffff8104b1d0>] ? do_page_fault+0x120/0x410 [<ffffffff810c3d85>] ? do_brk+0x275/0x360 [<ffffffff81452d8f>] ? page_fault+0x1f/0x30 Disabling lock debugging due to kernel taint -- Markus -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>