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Date: Tue, 6 May 2008 09:06:40 +0800 From: "Jeff Chua" <jeff.chua.linux@...il.com> To: "Linus Torvalds" <torvalds@...ux-foundation.org> Cc: "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org> Subject: Re: Linux 2.6.26-rc1 - pgtable_32.c:178 pmd_bad On Sun, May 4, 2008 at 3:38 AM, Linus Torvalds <torvalds@...ux-foundation.org> wrote: > > So this merge window was somewhat rocky in the sense that there was a lot > of arguments about it, but at the same time I at least personally think > that from a technical angle, we had somewhat less scary stuff going on > than has been almost the rule lately. I'm seeing this on a Dell 2950 (quad-core) during boot up, but not on my IBM X60s (dual-core). This is using the lastest git 2.6.26-rc1. Just checking to see if this is a known bug before doing the bisect -- more painful on the 2950 to reboot. Thanks, Jeff. Freeing unused kernel memory: 252k freed ------------[ cut here ]------------ WARNING: at arch/x86/mm/pgtable_32.c:178 pmd_bad+0xa3/0xe3() Modules linked in: Pid: 1226, comm: khelper Not tainted 2.6.26-rc1 #4 [<c0121614>] warn_on_slowpath+0x40/0x65 [<c011823e>] kmap_atomic+0x11/0x14 [<c01183b7>] kunmap_atomic+0x4f/0x78 [<c014a0db>] get_page_from_freelist+0x33a/0x3da [<c014a225>] __alloc_pages_internal+0x98/0x356 [<c01181f8>] kmap_atomic_prot+0x102/0x137 [<c01183b7>] kunmap_atomic+0x4f/0x78 [<c0154dd0>] handle_mm_fault+0xb70/0xbba [<c011770c>] pmd_bad+0xa3/0xe3 [<c0151cad>] follow_page+0x109/0x30a [<c015516b>] get_user_pages+0x351/0x3c0 [<c016aec4>] get_arg_page+0x2b/0x7b [<c016afe1>] copy_strings+0xcd/0x173 [<c016b0a0>] copy_strings_kernel+0x19/0x27 [<c016c28a>] do_execve+0xd9/0x18f [<c010136a>] sys_execve+0x2a/0x4f [<c0102d22>] syscall_call+0x7/0xb [<c038007b>] i8042_probe+0x29f/0x508 [<c0106034>] kernel_execve+0x14/0x18 [<c012dcfc>] ____call_usermodehelper+0x0/0x105 [<c012ddf7>] ____call_usermodehelper+0xfb/0x105 [<c012dcfc>] ____call_usermodehelper+0x0/0x105 [<c0103917>] kernel_thread_helper+0x7/0x10 ======================= ---[ end trace 6aae36751415b63a ]--- Adding 27350652k swap on /dev/sda3. Priority:-1 extents:1 across:27350652k -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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