linux-kernel - [gbefb] WARNING: CPU: 1 PID: 1 at lib/dma-debug.c:1041 check

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Date:	Wed, 5 Mar 2014 21:38:21 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Laura Abbott <lauraa@...eaurora.org>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Russell King <rmk@...-67.arm.linux.org.uk>
Subject: [gbefb] WARNING: CPU: 1 PID: 1 at lib/dma-debug.c:1041 check_unmap()

Greetings,

I got the below dmesg and the first bad commit is

commit c060f943d0929f3e429c5d9522290584f6281d6e
Author:     Laura Abbott <lauraa@...eaurora.org>
AuthorDate: Fri Jan 11 14:31:51 2013 -0800
Commit:     Linus Torvalds <torvalds@...ux-foundation.org>
CommitDate: Fri Jan 11 14:54:55 2013 -0800

    mm: use aligned zone start for pfn_to_bitidx calculation
    

[    7.951495] gbefb: couldn't allocate framebuffer memory
[    7.952974] ------------[ cut here ]------------
[    7.952974] ------------[ cut here ]------------
[    7.954307] WARNING: CPU: 1 PID: 1 at lib/dma-debug.c:1041 check_unmap+0x126/0x702()

git bisect start v3.8 v3.7 --
git bisect good 8d91a42e54eebc43f4d8f6064751ccba73528275  # 12:16     30+     10  Merge tag 'omap-late-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
git bisect  bad 910ffdb18a6408e14febbb6e4b6840fd2c928c82  # 12:21      0-     11  ptrace: introduce signal_wake_up_state() and ptrace_signal_wake_up()
git bisect good bfbbd96c51b441b7a9a08762aa9ab832f6655b2c  # 12:29     30+     12  audit: fix auditfilter.c kernel-doc warnings
git bisect  bad a6d3bd274b85218bf7dda925d14db81e1a8268b3  # 12:35      0-     22  Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64
git bisect  bad 3441f0d26d02ec8073ea9ac7d1a4da8a9818ad59  # 12:41      0-      2  Merge tag 'driver-core-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
git bisect  bad c727b4c63c9bf33c65351bbcc738161edb444b24  # 12:45      0-      4  Merge branch 'akpm' (incoming fixes from Andrew)
git bisect good 47ecfcb7d01418fcbfbc75183ba5e28e98b667b2  # 12:54     30+     12  mm: compaction: Partially revert capture of suitable high-order page
git bisect good 52b820d917c7c8c1b2ddec2f0ac165b67267feec  # 12:58     30+      9  Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
git bisect good 93ccb3910ae3dbff6d224aecd22d8eece3d70ce9  # 13:01     30+     16  Merge tag 'nfs-for-3.8-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
git bisect  bad 1b963c81b14509e330e0fe3218b645ece2738dc5  # 13:08      0-      5  lockdep, rwsem: provide down_write_nest_lock()
git bisect good c0232ae861df679092c15960b6cd9f589d9b7177  # 13:23     30+      9  mm: memblock: fix wrong memmove size in memblock_merge_regions()
git bisect  bad c060f943d0929f3e429c5d9522290584f6281d6e  # 13:26      0-     10  mm: use aligned zone start for pfn_to_bitidx calculation
git bisect good 6d92d4f6a74766cc885b18218268e0c47fbca399  # 13:31     30+      8  fs/exec.c: work around icc miscompilation
# first bad commit: [c060f943d0929f3e429c5d9522290584f6281d6e] mm: use aligned zone start for pfn_to_bitidx calculation
git bisect good 6d92d4f6a74766cc885b18218268e0c47fbca399  # 13:36     90+     52  fs/exec.c: work around icc miscompilation
git bisect  bad 0964c4d936f53872725d96bb04d490a70aa1165a  # 13:37      0-     17  0day head guard for 'devel-hourly-2014022108'
git bisect  bad dbf1b162bc9a01d93fa2d2ab3e8e064528575516  # 13:41     76-     14  Revert "mm: use aligned zone start for pfn_to_bitidx calculation"
git bisect  bad d158fc7f36a25e19791d25a55da5623399a2644f  # 13:45      2-      7  Merge tag 'pci-v3.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
git bisect  bad 12f1d94f0c8b256c04cb9b6b5dd989c32e44f11b  # 13:46      0-      8  Add linux-next specific files for 20140220

Thanks,
Fengguang

View attachment "dmesg-quantal-stoakley-5:20140221091816:i386-randconfig-st0-02210812:3.14.0-rc3-wl-01929-g0964c4d:4" of type "text/plain" (103931 bytes)

View attachment "config-3.14.0-rc3-wl-01929-g0964c4d" of type "text/plain" (72042 bytes)