Message-ID: <45C6B71E.9050805@cogweb.net>
Date:	Sun, 04 Feb 2007 20:48:30 -0800
From:	David Liontooth <liontooth@...web.net>
To:	linux-kernel@...r.kernel.org
Subject: Re: Eeek! page_mapcount(page) went negative! (-1)

David Liontooth wrote:
> Running a script called thumbnails, which uses imagemagick's convert
> utility, I got this on a mainline 2.6.16.38:
>
> Feb  4 17:04:01 prato /USR/SBIN/CRON[17173]: (tna) CMD (thumbnails
> /db2/2006/2006-11/2006-11-16)
>
> Feb  4 17:20:49 prato kernel: swap_free: Unused swap offset entry 00000080
> Feb  4 17:20:49 prato kernel: convert[23078]: segfault at
> 0000000000008000 rip 00002b885c7d6590 rsp 00007fffffa49308 error 4
> Feb  4 17:20:50 prato kernel: convert[23113]: segfault at
> 0000000000008010 rip 00002b0914f305aa rsp 00007fffff984340 error 4
>
> Feb  4 17:50:57 prato kernel: swap_free: Unused swap offset entry 00000080
> Feb  4 17:50:57 prato kernel: swap_free: Unused swap offset entry 00000080
> Feb  4 17:50:57 prato kernel: Eeek! page_mapcount(page) went negative! (-1)
> Feb  4 17:50:57 prato kernel:   page->flags = 10000000000083c
> Feb  4 17:50:57 prato kernel:   page->count = 2
> Feb  4 17:50:57 prato kernel:   page->mapping = ffff81002604c670
> Feb  4 17:50:57 prato kernel: ----------- [cut here ] --------- [please
> bite here ] ---------
> Feb  4 17:50:57 prato kernel: Kernel BUG at mm/rmap.c:560
> Feb  4 17:50:57 prato kernel: invalid opcode: 0000 [1] SMP
> Feb  4 17:50:57 prato kernel: CPU 1
> Feb 4 17:50:57 prato kernel: Modules linked in: lirc_serial lirc_dev
> saa7134_alsa tuner saa7134 video_buf compat_ioctl32 v4l2_common v4l1_compat
> ir_kbd_i2c ir_common videodev skge ehci_hcd ohci_hcd psmouse pcspkr evdev
> Feb  4 17:50:57 prato kernel: Pid: 29168, comm: thumbnails Tainted:
> GF     2.6.16.38 #1
> Feb  4 17:50:57 prato kernel: RIP: 0010:[<ffffffff801581f0>]
> <ffffffff801581f0>{page_remove_rmap+117}
> Feb  4 17:50:57 prato kernel: RSP: 0018:ffff81000bc6dde8  EFLAGS: 00010286
> Feb  4 17:50:57 prato kernel: RAX: 00000000ffffffff RBX:
> ffff810001d1b290 RCX: 0000000000006507
> Feb  4 17:50:57 prato kernel: RDX: 00000000ffffff01 RSI:
> 0000000000000292 RDI: ffffffff80465dfc
> Feb  4 17:50:57 prato kernel: RBP: 000000003be9e000 R08:
> 0000000000000000 R09: 0000000000000001
> Feb  4 17:50:57 prato kernel: R10: 0000000000000010 R11:
> 0000000000000000 R12: 000000000062f000
> Feb  4 17:50:57 prato kernel: R13: ffff810015ed7178 R14:
> 00000000006d6000 R15: ffff810001e12220
> Feb  4 17:50:57 prato kernel: FS:  00002b444df8a6d0(0000)
> GS:ffff810001fc5ac0(0000) knlGS:0000000000000000
> Feb  4 17:50:57 prato kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
> 000000008005003b
> Feb  4 17:50:57 prato kernel: CR2: 00002b444ddb61f0 CR3:
> 0000000013f22000 CR4: 00000000000006e0
> Feb  4 17:50:57 prato kernel: Process thumbnails (pid: 29168, threadinfo
> ffff81000bc6c000, task ffff81003fe25160)
> Feb  4 17:50:57 prato kernel: Stack: ffff810001d1b290 ffffffff801519da
> 0000000000000000 ffff81000bc6dec8
> Feb  4 17:50:57 prato kernel:        ffffffffffffffff 0000000000000000
> ffff81002955d648 ffff81000bc6ded0
> Feb  4 17:50:57 prato kernel:        0000000000000000 000000012cf477b8
> Feb  4 17:50:57 prato kernel: Call Trace:
> <ffffffff801519da>{unmap_vmas+1012} <ffffffff80154a7d>{exit_mmap+120}
> Feb  4 17:50:57 prato kernel:        <ffffffff80126c7d>{mmput+40}
> <ffffffff8012bb38>{do_exit+489}
> Feb  4 17:50:57 prato kernel:       
> <ffffffff8012c217>{sys_exit_group+0} <ffffffff8010a936>{system_call+126}
> Feb  4 17:50:57 prato kernel:
> Feb  4 17:50:57 prato kernel: Code: 0f 0b 68 f8 21 40 80 c2 30 02 5b 48
> 83 ce ff bf 20 00 00 00
> Feb  4 17:50:57 prato kernel: RIP
> <ffffffff801581f0>{page_remove_rmap+117} RSP <ffff81000bc6dde8>
> Feb  4 17:50:57 prato kernel:  <1>Fixing recursive fault but reboot is
> needed!
> Feb  4 17:52:52 prato kernel: Bad page state in process 'kswapd0'
> Feb  4 17:52:52 prato kernel: page:ffff810001d1b290
> flags:0x0100000000000008 mapping:0000000000000000 mapcount:-1 count:0
> Feb  4 17:52:52 prato kernel: Trying to fix it up, but a reboot is needed
> Feb  4 17:52:52 prato kernel: Backtrace:
> Feb  4 17:52:52 prato kernel:
> Feb  4 17:52:52 prato kernel: Call Trace:
> <ffffffff80149d38>{bad_page+80} <ffffffff8014a0f3>{free_hot_cold_page+116}
> Feb  4 17:52:52 prato kernel:       
> <ffffffff8014a19a>{__pagevec_free+33}
> <ffffffff8014cfc6>{__pagevec_release_nonlru+122}
> Feb  4 17:52:52 prato kernel:       
> <ffffffff8014e341>{shrink_zone+2280} <ffffffff8014ec9d>{balance_pgdat+527}
> Feb  4 17:52:52 prato kernel:        <ffffffff8014f21c>{kswapd+265}
> <ffffffff8013ae86>{autoremove_wake_function+0}
> Feb  4 17:52:52 prato kernel:        <ffffffff8010b782>{child_rip+8}
> <ffffffff8014f113>{kswapd+0}
> Feb  4 17:52:52 prato kernel:        <ffffffff8010b77a>{child_rip+0}
>
> lspci
>
> 00:00.0 Host bridge: nVidia Corporation nForce3 250Gb Host Bridge (rev a1)
> 00:01.0 ISA bridge: nVidia Corporation nForce3 250Gb LPC Bridge (rev a2)
> 00:01.1 SMBus: nVidia Corporation nForce 250Gb PCI System Management
> (rev a1)
> 00:02.0 USB Controller: nVidia Corporation CK8S USB Controller (rev a1)
> 00:02.1 USB Controller: nVidia Corporation CK8S USB Controller (rev a1)
> 00:02.2 USB Controller: nVidia Corporation nForce3 EHCI USB 2.0
> Controller (rev a2)
> 00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb
> AC'97 Audio Controller (rev a1)
> 00:08.0 IDE interface: nVidia Corporation CK8S Parallel ATA Controller
> (v2.5) (rev a2)
> 00:0a.0 IDE interface: nVidia Corporation CK8S Serial ATA Controller
> (v2.5) (rev a2)
> 00:0b.0 PCI bridge: nVidia Corporation nForce3 250Gb AGP Host to PCI
> Bridge (rev a2)
> 00:0e.0 PCI bridge: nVidia Corporation nForce3 250Gb PCI-to-PCI Bridge
> (rev a2)
> 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
> HyperTransport Technology Configuration
> 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
> Address Map
> 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
> DRAM Controller
> 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
> Miscellaneous Control
> 01:00.0 VGA compatible controller: nVidia Corporation NV18 [GeForce4 MX
> 4000 AGP 8x] (rev c1)
> 02:06.0 Multimedia controller: Philips Semiconductors SAA7133/SAA7135
> Video Broadcast Decoder (rev 10)
> 02:07.0 Multimedia controller: Philips Semiconductors SAA7133/SAA7135
> Video Broadcast Decoder (rev 10)
> 02:08.0 Multimedia controller: Philips Semiconductors SAA7133/SAA7135
> Video Broadcast Decoder (rev 10)
> 02:09.0 Multimedia controller: Philips Semiconductors SAA7133/SAA7135
> Video Broadcast Decoder (rev 10)
> 02:0a.0 Multimedia controller: Philips Semiconductors SAA7133/SAA7135
> Video Broadcast Decoder (rev 10)
> 02:0b.0 Ethernet controller: Marvell Technology Group Ltd. 88E8001
> Gigabit Ethernet Controller (rev 13)
>
> Let me know if more information would be useful, such as the kernel
> .config file.
>
>   
More from the same machine -- it really doesn't like the script, which
simply does:

nice -n 19 transcode -q 0 -o $FIL.img/$FIL.img -y im -F png -x
ffmpeg,null -i $FIL.avi -c \
0:00:00-0:00:00.1,0:00:10-0:00:10.1,0:00:20-0:00:20.1,0:00:30-0:00:30.1,0:00:40-0:00:40.1,0:00:50-0:00:50.1,\
0:01:00-0:01:00.1,0:01:10-0:01:10.1,0:01:20-0:01:20.1,0:01:30-0:01:30.1,0:01:40-0:01:40.1,0:01:50-0:01:50.1

nice -n 19 convert -thumbnail 80x60 $IMG.png $THUMBS/$IMG.jpg

nice -n 19 montage -tile 15 -geometry +1,+1 $FIL.img/$THUMBS/*.jpg $FIL.jpg

I run the same script on another machine without drama.

Any suggestions? Please cc: me.

Dave

Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP:
[<ffffffff8048df80>]
PGD 297f8067 PUD 26c5c067 PMD 0
Oops: 0002 [1] SMP
CPU 0
Modules linked in: lirc_serial lirc_dev saa7134_alsa tuner saa7134 skge
video_buf compat_ioctl32 v4l2_common v4l1_compat ir_kbd_i2c ehci_hcd
ohci_hcd ir_common pcspkr videodev psmouse evdev
Pid: 1343, comm: thumbnails Tainted: GF     2.6.16.38 #1
RIP: 0010:[<ffffffff8048df80>] [<ffffffff8048df80>]
RSP: 0018:ffff81001d53be70  EFLAGS: 00010286
RAX: 0000000000000000 RBX: 000000000000000d RCX: 0000000000000000
RDX: 000000000000000d RSI: ffff8100327db000 RDI: ffff810031b40feb
RBP: ffff810001adf600 R08: 0000000000000000 R09: 00000000000019b6
R10: 0000000000000000 R11: 0000000000000001 R12: 000000000000000d
R13: 000000000001ffeb R14: ffff81003ec5dfc8 R15: ffff81003ec5de00
FS:  00002aba9d14f6d0(0000) GS:ffffffff8054c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000003096000 CR4: 00000000000006e0
Process thumbnails (pid: 1343, threadinfo ffff81001d53a000, task
ffff81003f797890)
Stack: ffffffff8016ee92 000000003dcee118 0000000000000000 ffff810031b40000
       ffff8100327db000 00000001005e4d88 ffff810000000000 ffff81003ec5de00
       0000000000000080 ffff8100327db000
Call Trace: <ffffffff8016ee92>{copy_strings+359}
<ffffffff8016ef11>{copy_strings_kernel+42}
       <ffffffff80170e4e>{do_execve+302} <ffffffff80109611>{sys_execve+54}
       <ffffffff8010acef>{stub_execve+103}

Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RIP [<ffffffff8048df80>] RSP <ffff81001d53be70>
CR2: 0000000000000000
 <1>Unable to handle kernel NULL pointer dereference at 0000000000000000
RIP:
[<ffffffff8048df80>]
PGD 153ed067 PUD 104ef067 PMD 0
Oops: 0002 [2] SMP
CPU 0
Modules linked in: lirc_serial lirc_dev saa7134_alsa tuner saa7134 skge
video_buf compat_ioctl32 v4l2_common v4l1_compat ir_kbd_i2c ehci_hcd
ohci_hcd ir_common pcspkr videodev psmouse evdev
Pid: 1346, comm: thumbnails Tainted: GF     2.6.16.38 #1
RIP: 0010:[<ffffffff8048df80>] [<ffffffff8048df80>]
RSP: 0018:ffff81001e2b1e70  EFLAGS: 00010286
RAX: 0000000000000000 RBX: 000000000000000d RCX: 0000000000000000
RDX: 000000000000000d RSI: ffff810035a1d000 RDI: ffff810006d85feb
RBP: ffff81000117f518 R08: 0000000000000000 R09: 00000000000019b0
R10: 0000000000000000 R11: 0000000000000001 R12: 000000000000000d
R13: 000000000001ffeb R14: ffff81003e032bc8 R15: ffff81003e032a00
FS:  00002aba9d14f6d0(0000) GS:ffffffff8054c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000011203000 CR4: 00000000000006e0
Process thumbnails (pid: 1346, threadinfo ffff81001e2b0000, task
ffff81003f7089b0)
Stack: ffffffff8016ee92 000000003dcee118 0000000000000000 ffff810006d85000
       ffff810035a1d000 00000001005e4c88 ffff810000000000 ffff81003e032a00
       0000000000000080 ffff810035a1d000
Call Trace: <ffffffff8016ee92>{copy_strings+359}
<ffffffff8016ef11>{copy_strings_kernel+42}
       <ffffffff80170e4e>{do_execve+302} <ffffffff80109611>{sys_execve+54}
       <ffffffff8010acef>{stub_execve+103}

Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RIP [<ffffffff8048df80>] RSP <ffff81001e2b1e70>
CR2: 0000000000000000
 <1>Unable to handle kernel NULL pointer dereference at 0000000000000000
RIP:
[<ffffffff8048df80>]
PGD 15158067 PUD 2081d067 PMD 0
Oops: 0002 [3] SMP
CPU 0
Modules linked in: lirc_serial lirc_dev saa7134_alsa tuner saa7134 skge
video_buf compat_ioctl32 v4l2_common v4l1_compat ir_kbd_i2c ehci_hcd
ohci_hcd ir_common pcspkr videodev psmouse evdev
Pid: 1349, comm: thumbnails Tainted: GF     2.6.16.38 #1
RIP: 0010:[<ffffffff8048df80>] [<ffffffff8048df80>]
RSP: 0018:ffff81002e56de70  EFLAGS: 00010286
RAX: 0000000000000000 RBX: 000000000000000d RCX: 0000000000000000
RDX: 000000000000000d RSI: ffff810033533000 RDI: ffff810008abcfeb
RBP: ffff8100011e5920 R08: 0000000000000000 R09: 00000000000019aa
R10: 0000000000000000 R11: 0000000000000001 R12: 000000000000000d
R13: 000000000001ffeb R14: ffff81003e5b23c8 R15: ffff81003e5b2200
FS:  00002aba9d14f6d0(0000) GS:ffffffff8054c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 000000003ce1f000 CR4: 00000000000006e0
Process thumbnails (pid: 1349, threadinfo ffff81002e56c000, task
ffff810014494240)
Stack: ffffffff8016ee92 000000003dcee118 0000000000000000 ffff810008abc000
       ffff810033533000 00000001005e4b88 ffff810000000000 ffff81003e5b2200
       0000000000000080 ffff810033533000
Call Trace: <ffffffff8016ee92>{copy_strings+359}
<ffffffff8016ef11>{copy_strings_kernel+42}
       <ffffffff80170e4e>{do_execve+302} <ffffffff80109611>{sys_execve+54}
       <ffffffff8010acef>{stub_execve+103}

Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RIP [<ffffffff8048df80>] RSP <ffff81002e56de70>
CR2: 0000000000000000

Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RIP [<ffffffff8048df80>] RSP <ffff810012921e70>
CR2: 0000000000000000
 <1>Unable to handle kernel NULL pointer dereference at 0000000000000000
RIP:
[<ffffffff8048df80>]
PGD 3d82c067 PUD 328ae067 PMD 0
Oops: 0002 [5] SMP
CPU 1
Modules linked in: lirc_serial lirc_dev saa7134_alsa tuner saa7134 skge
video_buf compat_ioctl32 v4l2_common v4l1_compat ir_kbd_i2c ehci_hcd
ohci_hcd ir_common pcspkr videodev psmouse evdev
Pid: 29115, comm: thumbnails Tainted: GF     2.6.16.38 #1
RIP: 0010:[<ffffffff8048df80>] [<ffffffff8048df80>]
RSP: 0018:ffff810027397e70  EFLAGS: 00010286
RAX: 0000000000000000 RBX: 000000000000000d RCX: 0000000000000000
RDX: 000000000000000d RSI: ffff810009847000 RDI: ffff81001ed3efeb
RBP: ffff8100016be590 R08: 0000000000000000 R09: 0000000000000ddd
R10: 0000000000000000 R11: 0000000000000001 R12: 000000000000000d
R13: 000000000001ffeb R14: ffff81003e03c1c8 R15: ffff81003e03c000
FS:  00002aba9d14f6d0(0000) GS:ffff810001fc5ac0(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 000000000a43d000 CR4: 00000000000006e0
Process thumbnails (pid: 29115, threadinfo ffff810027396000, task
ffff81001d0a3510)
Stack: ffffffff8016ee92 000000003dcee118 0000000000000000 ffff81001ed3e000
       ffff810009847000 00000001005ebd88 ffff810000000000 ffff81003e03c000
       0000000000000080 ffff810009847000
Call Trace: <ffffffff8016ee92>{copy_strings+359}
<ffffffff8016ef11>{copy_strings_kernel+42}
       <ffffffff80170e4e>{do_execve+302} <ffffffff80109611>{sys_execve+54}
       <ffffffff8010acef>{stub_execve+103}

Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RIP [<ffffffff8048df80>] RSP <ffff810027397e70>
CR2: 0000000000000000

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