* [UDL] general protection fault in fb_deferred_io_mkwrite()
@ 2012-08-12 10:34 Thomas Meyer
[not found] ` <CAO1w=s8AdkbSNMe8v0HqkosYNKp05+Udk4d-r1TbRb3GMC-MNw@mail.gmail.com>
0 siblings, 1 reply; 2+ messages in thread
From: Thomas Meyer @ 2012-08-12 10:34 UTC (permalink / raw)
To: linux-fbdev, linux-kernel, airlied, dri-devel
Hi,
guilty driver is probably udl_fb.c
any ideas?
[ 42.890551] open /dev/fb1 user=1 fb_info=ffff880130e0a800 count=1
[ 42.890585] released /dev/fb1 user=1 count=0
[ 42.890702] open /dev/fb1 user=1 fb_info=ffff880130e0a800 count=1
[ 43.053034] type=1400 audit(1344698343.496:9): avc: denied { execmem } for pid=631 comm="java" scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:system_r:httpd_t:s0 tclass=process
[ 43.093084] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[ 43.140051] [drm] write mode info 144
[ 43.140786] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[ 43.164482] asix 2-1.3:1.0: eth1: link down
[ 44.791884] asix 2-1.3:1.0: eth1: link up, 100Mbps, full-duplex, lpa 0x41E1
[ 45.289464] general protection fault: 0000 [#1]
[ 45.289512] CPU 0
[ 45.289529] Modules linked in: ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables snd_usb_audio snd_usbmidi_lib snd_rawmidi udl syscopyarea sysfillrect sysimgblt asix uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev usbnet snd_seq_device drm_usb arc4 btusb iwlwifi bluetooth snd_hda_codec_hdmi acer_wmi joydev mac80211 snd_hda_codec_realtek cfg80211 acerhdf atl1c snd_hda_intel sparse_keymap pcspkr snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_timer snd rfkill soundcore wmi kvm_intel kvm ipv6 [last unloaded: scsi_wait_scan]
[ 45.290003]
[ 45.290003] Pid: 629, comm: X Not tainted 3.5.1 #3 Acer Aspire 1810T/JM11-MS
[ 45.290003] RIP: 0010:[<ffffffff8123becc>] [<ffffffff8123becc>] fb_deferred_io_mkwrite+0xdc/0xf0
[ 45.290003] RSP: 0000:ffff880138e93c98 EFLAGS: 00010246
[ 45.290003] RAX: 7672645f6e6f6564 RBX: ffffea0004bd6180 RCX: 0000000000000036
[ 45.290003] RDX: ffff88013369b460 RSI: ffff880138e93cf8 RDI: ffff880130e0a800
[ 45.290003] RBP: ffff880138e93cb8 R08: 0c00000000000000 R09: a80012f586000000
[ 45.290003] R10: 57ffd70a7ebd6180 R11: 0000003ccd37a850 R12: ffff880130e0a800
[ 45.290003] R13: ffff88013369b448 R14: ffff88013369b440 R15: 0000000000000000
[ 45.290003] FS: 00007f981237a8c0(0000) GS:ffffffff8168a000(0000) knlGS:0000000000000000
[ 45.290003] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 45.290003] CR2: 00007f9810821010 CR3: 000000012f191000 CR4: 00000000000407f0
[ 45.290003] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 45.290003] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 45.290003] Process X (pid: 629, threadinfo ffff880138e92000, task ffff880130c16b50)
[ 45.290003] Stack:
[ 45.290003] ffff880130f37dc8 0000000000000001 ffff88013b2049c0 ffffea0004bd6180
[ 45.290003] ffff880138e93d48 ffffffff810b658c ffff880138e93d48 ffffffff810b740a
[ 45.290003] ffff88012f183210 00007f9810821010 ffff880127c23420 0000000030c16b50
[ 45.290003] Call Trace:
[ 45.290003] [<ffffffff810b658c>] __do_fault+0xbc/0x420
[ 45.290003] [<ffffffff810b740a>] ? do_wp_page.isra.77+0x2aa/0x640
[ 45.290003] [<ffffffff810b8acc>] handle_pte_fault+0x8c/0x7f0
[ 45.290003] [<ffffffff8103b3f0>] ? __send_signal.part.24+0x130/0x300
[ 45.290003] [<ffffffff810264aa>] ? pte_alloc_one+0x1a/0x40
[ 45.290003] [<ffffffff810b9948>] handle_mm_fault+0x208/0x2c0
[ 45.290003] [<ffffffff814c0543>] do_page_fault+0x143/0x490
[ 45.290003] [<ffffffff8104fe85>] ? check_preempt_curr+0x85/0xa0
[ 45.290003] [<ffffffff81052a2a>] ? __dequeue_entity+0x2a/0x50
[ 45.290003] [<ffffffff81052fee>] ? pick_next_task_fair+0x6e/0x180
[ 45.290003] [<ffffffff814bc6ad>] ? __schedule+0x22d/0x500
[ 45.290003] [<ffffffff814bd72f>] page_fault+0x1f/0x30
[ 45.290003] Code: 89 0a 4c 89 ef e8 35 fd 27 00 49 8b 36 49 8d bc 24 90 02 00 00 e8 95 66 e0 ff 5b b8 00 02 00 00 41 5c 41 5d 41 5e 5d c3 4c 89 e7 <ff> d0 e9 5e ff ff ff 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55
[ 45.290003] RIP [<ffffffff8123becc>] fb_deferred_io_mkwrite+0xdc/0xf0
[ 45.290003] RSP <ffff880138e93c98>
[ 45.316388] ---[ end trace d4732d5a0bf375fa ]---
[ 45.347642] released /dev/fb1 user=1 count=0
[ 45.454869] open /dev/fb1 user=1 fb_info=ffff880130e0a800 count=1
[ 45.454903] released /dev/fb1 user=1 count=0
[ 45.455020] open /dev/fb1 user=1 fb_info=ffff880130e0a800 count=1
[ 45.456389] [drm] write mode info 144
[ 45.631358] [drm] write mode info 144
[ 45.632075] general protection fault: 0000 [#2]
[ 45.632121] CPU 0
[ 45.632139] Modules linked in: ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables snd_usb_audio snd_usbmidi_lib snd_rawmidi udl syscopyarea sysfillrect sysimgblt asix uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev usbnet snd_seq_device drm_usb arc4 btusb iwlwifi bluetooth snd_hda_codec_hdmi acer_wmi joydev mac80211 snd_hda_codec_realtek cfg80211 acerhdf atl1c snd_hda_intel sparse_keymap pcspkr snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_timer snd rfkill soundcore wmi kvm_intel kvm ipv6 [last unloaded: scsi_wait_scan]
[ 45.633336]
[ 45.633336] Pid: 836, comm: X Tainted: G D 3.5.1 #3 Acer Aspire 1810T/JM11-MS
[ 45.633336] RIP: 0010:[<ffffffff8123becc>] [<ffffffff8123becc>] fb_deferred_io_mkwrite+0xdc/0xf0
[ 45.633336] RSP: 0000:ffff880126559c98 EFLAGS: 00010246
[ 45.633336] RAX: 006f732e61786562 RBX: ffffea0004bd6180 RCX: 0000000000000036
[ 45.633336] RDX: ffff8801265482e0 RSI: ffff880126559cf8 RDI: ffff880130e0a800
[ 45.633336] RBP: ffff880126559cb8 R08: 0c00000000000000 R09: a80012f586000000
[ 45.633336] R10: 57ffd70a7ebd6180 R11: 0000003ccd37a850 R12: ffff880130e0a800
[ 45.633336] R13: ffff8801265482c8 R14: ffff8801265482c0 R15: 0000000000000000
[ 45.633336] FS: 00007f06d7a628c0(0000) GS:ffffffff8168a000(0000) knlGS:0000000000000000
[ 45.633336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 45.633336] CR2: 00007f06d5f09010 CR3: 000000012f138000 CR4: 00000000000407f0
[ 45.633336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 45.633336] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 45.633336] Process X (pid: 836, threadinfo ffff880126558000, task ffff8801264dd290)
[ 45.633336] Stack:
[ 45.633336] ffff880127c64738 0000000000000001 ffff880138db5040 ffffea0004bd6180
[ 45.633336] ffff880126559d48 ffffffff810b658c ffff880126559d48 ffffffff810b740a
[ 45.633336] ffff880126581210 00007f06d5f09010 ffff880126574578 00000000264dd290
[ 45.633336] Call Trace:
[ 45.633336] [<ffffffff810b658c>] __do_fault+0xbc/0x420
[ 45.633336] [<ffffffff810b740a>] ? do_wp_page.isra.77+0x2aa/0x640
[ 45.633336] [<ffffffff810b8acc>] handle_pte_fault+0x8c/0x7f0
[ 45.633336] [<ffffffff8103b3f0>] ? __send_signal.part.24+0x130/0x300
[ 45.633336] [<ffffffff810264aa>] ? pte_alloc_one+0x1a/0x40
[ 45.633336] [<ffffffff810b9948>] handle_mm_fault+0x208/0x2c0
[ 45.633336] [<ffffffff814c0543>] do_page_fault+0x143/0x490
[ 45.633336] [<ffffffff8104fe85>] ? check_preempt_curr+0x85/0xa0
[ 45.633336] [<ffffffff81052a2a>] ? __dequeue_entity+0x2a/0x50
[ 45.633336] [<ffffffff81052fee>] ? pick_next_task_fair+0x6e/0x180
[ 45.633336] [<ffffffff814bc6ad>] ? __schedule+0x22d/0x500
[ 45.633336] [<ffffffff814bd72f>] page_fault+0x1f/0x30
[ 45.633336] Code: 89 0a 4c 89 ef e8 35 fd 27 00 49 8b 36 49 8d bc 24 90 02 00 00 e8 95 66 e0 ff 5b b8 00 02 00 00 41 5c 41 5d 41 5e 5d c3 4c 89 e7 <ff> d0 e9 5e ff ff ff 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55
[ 45.633336] RIP [<ffffffff8123becc>] fb_deferred_io_mkwrite+0xdc/0xf0
[ 45.633336] RSP <ffff880126559c98>
[ 45.711547] ---[ end trace d4732d5a0bf375fb ]---
[ 45.720961] released /dev/fb1 user=1 count=0
[ 45.756516] open /dev/fb1 user=1 fb_info=ffff880130e0a800 count=1
[ 45.756550] released /dev/fb1 user=1 count=0
[ 45.756632] open /dev/fb1 user=1 fb_info=ffff880130e0a800 count=1
[ 45.758195] [drm] write mode info 144
[ 45.994657] [drm] write mode info 144
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [UDL] general protection fault in fb_deferred_io_mkwrite()
[not found] ` <CAO1w=s8AdkbSNMe8v0HqkosYNKp05+Udk4d-r1TbRb3GMC-MNw@mail.gmail.com>
@ 2012-08-18 11:00 ` Thomas Meyer
0 siblings, 0 replies; 2+ messages in thread
From: Thomas Meyer @ 2012-08-18 11:00 UTC (permalink / raw)
To: Bernie Thompson; +Cc: linux-fbdev, linux-kernel, airlied, dri-devel
Am Sonntag, den 12.08.2012, 14:22 -0700 schrieb Bernie Thompson:
> On Sun, Aug 12, 2012 at 3:34 AM, Thomas Meyer <thomas@m3y3r.de> wrote:
> guilty driver is probably udl_fb.c
> any ideas?
>
>
> Hi Thomas,
Hi Bernie!
> We were seeing similar issues in udlfb (the original fbdev version of
> this driver), which were fixed earlier this year by getting all
> rendering operations out of probe/disconnect -- those which might
> trigger fb_defio page faults in an inappropriate context, or be
> long-running. Here's some more detail:
> http://plugable.com/2012/06/21/displaylink-usb-devices-on-linux-kernel-3-4-0/comment-page-1/#comment-5896
>
>
> Unfortunately, I haven't had time to get going with udl myself, so
> haven't been able to port and confirm. Thanks for raising and staying
> on this.
Okay, I see. I'll switch to FB_UDL for now and remove DRM_UDL from my
config.
Is somebody working on porting commit
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=8d21547d3c9c3bc653261f26d554cfabc4a083de to the DRM_UDL driver?
In Airlie's tree seems to be no commit related to this:
http://cgit.freedesktop.org/~airlied/linux/
with kind regards
thomas
>
>
> Best wishes,
> Bernie
>
>
> [ 45.633336] RIP [<ffffffff8123becc>]
> fb_deferred_io_mkwrite+0xdc/0xf0
> [ 45.633336] RSP <ffff880126559c98>
> [ 45.711547] ---[ end trace d4732d5a0bf375fb ]---
> [ 45.720961] released /dev/fb1 user=1 count=0
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2012-08-12 10:34 [UDL] general protection fault in fb_deferred_io_mkwrite() Thomas Meyer
[not found] ` <CAO1w=s8AdkbSNMe8v0HqkosYNKp05+Udk4d-r1TbRb3GMC-MNw@mail.gmail.com>
2012-08-18 11:00 ` Thomas Meyer
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