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Date: Mon, 25 Mar 2013 15:53:47 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: Toralf Förster <toralf.foerster@....de> Cc: user-mode-linux-user@...ts.sourceforge.net, Linux Kernel <linux-kernel@...r.kernel.org>, linux-mm@...ck.org Subject: Re: linux-v3.9-rc3: BUG: Bad page map in process trinity-child6 pte:002f9045 pmd:29e421e1 On Fri, 22 Mar 2013 18:28:36 +0100 Toralf F__rster <toralf.foerster@....de> wrote: > Using trinity I often trigger under a user mode linux image with host kernel 3.8.4 > and guest kernel linux-v3.9-rc3-244-g9217cbb the following : > (The UML guest is a 32bit stable Gentoo Linux) I assume 3.8 is OK? > > 2013-03-22T18:03:01.232+01:00 trinity kernel: BUG: Bad page map in process trinity-child6 pte:002f9045 pmd:29e421e1 > 2013-03-22T18:03:01.232+01:00 trinity kernel: page:0920df20 count:1 mapcount:-1 mapping: (null) index:0x0 mapcount=-1. > 2013-03-22T18:03:01.232+01:00 trinity kernel: page flags: 0x400(reserved) > 2013-03-22T18:03:01.232+01:00 trinity kernel: addr:00100000 vm_flags:00060055 anon_vma: (null) mapping: (null) index:100 > 2013-03-22T18:03:01.232+01:00 trinity kernel: vma->vm_ops->fault: special_mapping_fault+0x0/0x80 > 2013-03-22T18:03:01.232+01:00 trinity kernel: 31e87d1c: [<0833b8b8>] dump_stack+0x22/0x24 > 2013-03-22T18:03:01.232+01:00 trinity kernel: 31e87d34: [<0833cc71>] print_bad_pte+0x17b/0x197 > 2013-03-22T18:03:01.232+01:00 trinity kernel: 31e87d78: [<080e1138>] unmap_single_vma+0x268/0x430 > 2013-03-22T18:03:01.232+01:00 trinity kernel: 31e87dd8: [<080e1837>] unmap_vmas+0x37/0x50 > 2013-03-22T18:03:01.232+01:00 trinity kernel: 31e87df4: [<080e4970>] unmap_region+0x80/0xe0 > 2013-03-22T18:03:01.233+01:00 trinity kernel: 31e87e30: [<080e6661>] do_munmap+0x231/0x2a0 > 2013-03-22T18:03:01.233+01:00 trinity kernel: 31e87e68: [<080e8ae8>] sys_mremap+0x248/0x480 > 2013-03-22T18:03:01.233+01:00 trinity kernel: 31e87eac: [<08062a82>] handle_syscall+0x82/0xb0 > 2013-03-22T18:03:01.233+01:00 trinity kernel: 31e87ef4: [<08074dfd>] userspace+0x46d/0x590 > 2013-03-22T18:03:01.233+01:00 trinity kernel: 31e87fec: [<0805f7bc>] fork_handler+0x6c/0x70 > 2013-03-22T18:03:01.233+01:00 trinity kernel: 31e87ffc: [<00000000>] 0x0 > 2013-03-22T18:03:01.233+01:00 trinity kernel: 2013-03-22T18:03:01.233+01:00 trinity kernel: Disabling lock debugging due to kernel taint > 2013-03-22T18:03:01.233+01:00 trinity kernel: BUG: Bad page state in process trinity-child6 pfn:002f9 > 2013-03-22T18:03:01.233+01:00 trinity kernel: page:0920df20 count:0 mapcount:-1 mapping: (null) index:0x0 > 2013-03-22T18:03:01.235+01:00 trinity kernel: page flags: 0x400(reserved) > 2013-03-22T18:03:01.235+01:00 trinity kernel: 31e87cd4: [<0833b8b8>] dump_stack+0x22/0x24 > 2013-03-22T18:03:01.235+01:00 trinity kernel: 31e87cec: [<080cd755>] bad_page+0xb5/0xe0 > 2013-03-22T18:03:01.235+01:00 trinity kernel: 31e87d08: [<080cd7f3>] free_pages_prepare+0x73/0xb0 > 2013-03-22T18:03:01.235+01:00 trinity kernel: 31e87d24: [<080cec1d>] free_hot_cold_page+0x1d/0x100 > 2013-03-22T18:03:01.235+01:00 trinity kernel: 31e87d4c: [<080d15ae>] __put_single_page+0x1e/0x30 > 2013-03-22T18:03:01.235+01:00 trinity kernel: 31e87d60: [<080d16d7>] put_page+0x27/0x30 > 2013-03-22T18:03:01.235+01:00 trinity kernel: 31e87d68: [<080ee6ec>] free_page_and_swap_cache+0x3c/0x50 > 2013-03-22T18:03:01.235+01:00 trinity kernel: 31e87d78: [<080e1155>] unmap_single_vma+0x285/0x430 > 2013-03-22T18:03:01.235+01:00 trinity kernel: 31e87dd8: [<080e1837>] unmap_vmas+0x37/0x50 > 2013-03-22T18:03:01.236+01:00 trinity kernel: 31e87df4: [<080e4970>] unmap_region+0x80/0xe0 > 2013-03-22T18:03:01.236+01:00 trinity kernel: 31e87e30: [<080e6661>] do_munmap+0x231/0x2a0 > 2013-03-22T18:03:01.236+01:00 trinity kernel: 31e87e68: [<080e8ae8>] sys_mremap+0x248/0x480 > 2013-03-22T18:03:01.236+01:00 trinity kernel: 31e87eac: [<08062a82>] handle_syscall+0x82/0xb0 > 2013-03-22T18:03:01.236+01:00 trinity kernel: 31e87ef4: [<08074dfd>] userspace+0x46d/0x590 > 2013-03-22T18:03:01.236+01:00 trinity kernel: 31e87fec: [<0805f7bc>] fork_handler+0x6c/0x70 > 2013-03-22T18:03:01.236+01:00 trinity kernel: 31e87ffc: [<00000000>] 0x0 > 2013-03-22T18:03:01.236+01:00 trinity kernel: 2013-03-22T18:03:01.236+01:00 trinity kernel: BUG: Bad page map in process trinity-child6 pte:29e38045 pmd:29e421e1 > 2013-03-22T18:03:01.236+01:00 trinity kernel: page:09744700 count:1 mapcount:-1 mapping: (null) index:0x0 > 2013-03-22T18:03:01.237+01:00 trinity kernel: page flags: 0x0() > 2013-03-22T18:03:01.237+01:00 trinity kernel: addr:00101000 vm_flags:00060055 anon_vma: (null) mapping: (null) index:101 > 2013-03-22T18:03:01.237+01:00 trinity kernel: vma->vm_ops->fault: special_mapping_fault+0x0/0x80 > 2013-03-22T18:03:01.237+01:00 trinity kernel: 31e87d1c: [<0833b8b8>] dump_stack+0x22/0x24 > 2013-03-22T18:03:01.237+01:00 trinity kernel: 31e87d34: [<0833cc71>] print_bad_pte+0x17b/0x197 > 2013-03-22T18:03:01.237+01:00 trinity kernel: 31e87d78: [<080e1138>] unmap_single_vma+0x268/0x430 > 2013-03-22T18:03:01.237+01:00 trinity kernel: 31e87dd8: [<080e1837>] unmap_vmas+0x37/0x50 > 2013-03-22T18:03:01.237+01:00 trinity kernel: 31e87df4: [<080e4970>] unmap_region+0x80/0xe0 > 2013-03-22T18:03:01.237+01:00 trinity kernel: 31e87e30: [<080e6661>] do_munmap+0x231/0x2a0 > 2013-03-22T18:03:01.237+01:00 trinity kernel: 31e87e68: [<080e8ae8>] sys_mremap+0x248/0x480 > 2013-03-22T18:03:01.238+01:00 trinity kernel: 31e87eac: [<08062a82>] handle_syscall+0x82/0xb0 > 2013-03-22T18:03:01.238+01:00 trinity kernel: 31e87ef4: [<08074dfd>] userspace+0x46d/0x590 > 2013-03-22T18:03:01.238+01:00 trinity kernel: 31e87fec: [<0805f7bc>] fork_handler+0x6c/0x70 > 2013-03-22T18:03:01.238+01:00 trinity kernel: 31e87ffc: [<00000000>] 0x0 > 2013-03-22T18:03:01.238+01:00 trinity kernel: 2013-03-22T18:03:01.238+01:00 trinity kernel: BUG: Bad page state in process trinity-child6 pfn:29e38 > 2013-03-22T18:03:01.238+01:00 trinity kernel: page:09744700 count:0 mapcount:-1 mapping: (null) index:0x0 > 2013-03-22T18:03:01.238+01:00 trinity kernel: page flags: 0x0() > 2013-03-22T18:03:01.238+01:00 trinity kernel: 31e87cd4: [<0833b8b8>] dump_stack+0x22/0x24 > 2013-03-22T18:03:01.238+01:00 trinity kernel: 31e87cec: [<080cd755>] bad_page+0xb5/0xe0 > 2013-03-22T18:03:01.239+01:00 trinity kernel: 31e87d08: [<080cd7f3>] free_pages_prepare+0x73/0xb0 > 2013-03-22T18:03:01.239+01:00 trinity kernel: 31e87d24: [<080cec1d>] free_hot_cold_page+0x1d/0x100 > 2013-03-22T18:03:01.239+01:00 trinity kernel: 31e87d4c: [<080d15ae>] __put_single_page+0x1e/0x30 > 2013-03-22T18:03:01.239+01:00 trinity kernel: 31e87d60: [<080d16d7>] put_page+0x27/0x30 > 2013-03-22T18:03:01.239+01:00 trinity kernel: 31e87d68: [<080ee6ec>] free_page_and_swap_cache+0x3c/0x50 > 2013-03-22T18:03:01.239+01:00 trinity kernel: 31e87d78: [<080e1155>] unmap_single_vma+0x285/0x430 > 2013-03-22T18:03:01.239+01:00 trinity kernel: 31e87dd8: [<080e1837>] unmap_vmas+0x37/0x50 > 2013-03-22T18:03:01.239+01:00 trinity kernel: 31e87df4: [<080e4970>] unmap_region+0x80/0xe0 > 2013-03-22T18:03:01.239+01:00 trinity kernel: 31e87e30: [<080e6661>] do_munmap+0x231/0x2a0 > 2013-03-22T18:03:01.239+01:00 trinity kernel: 31e87e68: [<080e8ae8>] sys_mremap+0x248/0x480 > 2013-03-22T18:03:01.240+01:00 trinity kernel: 31e87eac: [<08062a82>] handle_syscall+0x82/0xb0 > 2013-03-22T18:03:01.240+01:00 trinity kernel: 31e87ef4: [<08074dfd>] userspace+0x46d/0x590 > 2013-03-22T18:03:01.240+01:00 trinity kernel: 31e87fec: [<0805f7bc>] fork_handler+0x6c/0x70 > 2013-03-22T18:03:01.240+01:00 trinity kernel: 31e87ffc: [<00000000>] 0x0 > 2013-03-22T18:03:01.240+01:00 trinity kernel: 2013-03-22T18:03:01.240+01:00 trinity kernel: Stub registers - > 2013-03-22T18:03:01.240+01:00 trinity kernel: 0 - 100000 > 2013-03-22T18:03:01.240+01:00 trinity kernel: 1 - 300000 > 2013-03-22T18:03:01.240+01:00 trinity kernel: 2 - 0 > 2013-03-22T18:03:01.240+01:00 trinity kernel: 3 - 0 > 2013-03-22T18:03:01.243+01:00 trinity kernel: 4 - 0 > 2013-03-22T18:03:01.243+01:00 trinity kernel: 5 - 0 > 2013-03-22T18:03:01.243+01:00 trinity kernel: 6 - 0 > 2013-03-22T18:03:01.243+01:00 trinity kernel: 7 - 7b > 2013-03-22T18:03:01.243+01:00 trinity kernel: 8 - 7b > 2013-03-22T18:03:01.243+01:00 trinity kernel: 9 - 0 > 2013-03-22T18:03:01.243+01:00 trinity kernel: 10 - 33 > 2013-03-22T18:03:01.243+01:00 trinity kernel: 11 - ffffffff > 2013-03-22T18:03:01.243+01:00 trinity kernel: 12 - 1000c3 > 2013-03-22T18:03:01.243+01:00 trinity kernel: 13 - 73 > 2013-03-22T18:03:01.244+01:00 trinity kernel: 14 - 10206 > 2013-03-22T18:03:01.244+01:00 trinity kernel: 15 - 101028 > 2013-03-22T18:03:01.244+01:00 trinity kernel: 16 - 7b > 2013-03-22T18:03:01.244+01:00 trinity kernel: wait_stub_done : failed to wait for SIGTRAP, pid = 3143, n = 3143, errno = 0, status = 0xb7f > > > -- > MfG/Sincerely > Toralf F__rster > pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 > -- To unsubscribe from this list: send the line "unsubscribe 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