search for: trap_m2mf

The vblank on nvc0 was not working correctly and would freeze X, I managed to track it down and fix it with some help from m.b.lankhorst, see https://bugs.freedesktop.org/show_bug.cgi?id=56692 for details. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/nouveau/attachments/20121106/27ceb48e/attachment.html> --------------

Hi, Adam. 2018-04-03 23:00 GMT+03:00, Adam Borowski <kilobyte at angband.pl>: > Hi! > In commit da5e45e619b3f101420c38b3006a9ae4f3ad19b0 > > yet it is still reproducible for me on 4.16-rc7 and 4.16.0, which already > have your fix. I don't know about earlier versions -- my newer card went > into flames just a few days ago, and I replaced it a brand new 8400GS (G98)

On Wed, Apr 4, 2018 at 6:58 PM, Adam Borowski <kilobyte at angband.pl> wrote: > On Wed, Apr 04, 2018 at 03:48:39PM +0300, Māris Nartišs wrote: >> 2018-04-03 23:00 GMT+03:00, Adam Borowski <kilobyte at angband.pl>: >> > In commit da5e45e619b3f101420c38b3006a9ae4f3ad19b0 >> > >> > yet it is still reproducible for me on 4.16-rc7 and 4.16.0, which

...14.284125] nouveau E[ PFIFO][0000:04:00.0] DMA_PUSHER - ch 2 [Xorg[1761]] get 0x002003b398 put 0x002003b404 ib_get 0x0000036e ib_put 0x0000036f state 0x80000024 (err: INVALID_CMD) push 0x00400040 2013-06-14T03:59:34.124255+02:00 linux-zxd7 kernel: [303714.285213] nouveau E[ PGRAPH][0000:04:00.0] TRAP_M2MF IN 2013-06-14T03:59:34.124266+02:00 linux-zxd7 kernel: [303714.285219] nouveau E[ PGRAPH][0000:04:00.0] TRAP_M2MF 00320051 6ade1280 00000000 04000432 2013-06-14T03:59:34.124267+02:00 linux-zxd7 kernel: [303714.285222] nouveau E[ PGRAPH][0000:04:00.0] TRAP 2013-06-14T03:59:34.124268+02:00 linux-z...

...- Address 00ff000000 [29982.123620] nouveau 0000:01:00.0: gr: TRAP_PROP - TP 0 - e0c: 00000000, e18: 00000000, e1c: 00000000, e20: 00000011, e24: 0c030000 [29982.135365] nouveau 0000:01:00.0: gr: 00200000 [] ch 2 [001fa31000 Xorg[2667]] subc 2 class 502d mthd 0860 data ff2e2e2e I did not observe a TRAP_M2MF, but the above were present in previous errors, thus it's probably random what happens first. Meow! -- ⢀⣴⠾⠻⢶⣦⠀ ⣾⠁⢰⠒⠀⣿⡁ ⢿⡄⠘⠷⠚⠋⠀ ... what's the frequency of that 5V DC? ⠈⠳⣄⠀⠀⠀⠀

...ALIGN_DOWN to a different variable (addr) and left > intended variable (tail) not rounded/ALIGNed. > > As a result screen corruption, X lockups are observable. An example of kernel > log of affected system with NV98 card where it was bisected: > > nouveau 0000:01:00.0: gr: TRAP_M2MF 00000002 [IN] > nouveau 0000:01:00.0: gr: TRAP_M2MF 00320951 400007c0 00000000 04000000 > nouveau 0000:01:00.0: gr: 00200000 [] ch 1 [000fbbe000 DRM] subc 4 class 5039 > mthd 0100 data 00000000 > nouveau 0000:01:00.0: fb: trapped read at 0040000000 on channel 1 > [0fbbe000 DRM]...

...5e0 data 0x00000000 Mar 8 20:07:24 pf-XPS-M1330 kernel: [ 46.267628] nouveau E[ PFB][0000:01:00.0] trapped write at 0x0020317700 on channel 0x00007b23 [Xorg[1206]] PGRAPH/PROP/DST2D reason: PAGE_NOT_PRESENT Mar 8 20:07:24 pf-XPS-M1330 kernel: [ 46.267756] nouveau E[ PGRAPH][0000:01:00.0] TRAP_M2MF NOTIFY Mar 8 20:07:24 pf-XPS-M1330 kernel: [ 46.267816] nouveau E[ PGRAPH][0000:01:00.0] TRAP_M2MF 00304041 00004360 00000000 06000432 Mar 8 20:07:24 pf-XPS-M1330 kernel: [ 46.267861] nouveau E[ PGRAPH][0000:01:00.0] TRAP Mar 8 20:07:24 pf-XPS-M1330 kernel: [ 46.267906] nouveau E[ PGRA...

...DISPATCH] subclient > 04 [M2M_IN] reason 00000006 [NULL_DMAOBJ]” one? > I did manage to reproduce the second one with Wayland, but still no luck > with the first one. This error: [ 372.954548] nouveau 0000:03:00.0: imem: OOM: 00100000 00001000 -28 [ 372.954702] nouveau 0000:03:00.0: gr: TRAP_M2MF 00000002 [IN] [ 372.954712] nouveau 0000:03:00.0: gr: TRAP_M2MF 00320951 c0001fc0 00000000 04000430 [ 372.954722] nouveau 0000:03:00.0: gr: 00200000 [] ch 1 [000fbb0000 DRM] subc 4 class 5039 mthd 0100 data 00000000 [ 372.954752] nouveau 0000:03:00.0: fb: trapped read at 00c0000000 on channel 1...

...ALIGN_DOWN, but erroneously applied ALIGN_DOWN to a different variable (addr) and left intended variable (tail) not rounded/ALIGNed. As a result screen corruption, X lockups are observable. An example of kernel log of affected system with NV98 card where it was bisected: nouveau 0000:01:00.0: gr: TRAP_M2MF 00000002 [IN] nouveau 0000:01:00.0: gr: TRAP_M2MF 00320951 400007c0 00000000 04000000 nouveau 0000:01:00.0: gr: 00200000 [] ch 1 [000fbbe000 DRM] subc 4 class 5039 mthd 0100 data 00000000 nouveau 0000:01:00.0: fb: trapped read at 0040000000 on channel 1 [0fbbe000 DRM] engine 00 [PGRAPH] client 03 [...

...f 97 e9 b8 ed ff ff [ 63.993651] RIP: nvkm_object_unmap+0x5/0x20 [nouveau] RSP: ffffad338456fc98 [ 63.993657] CR2: 0000000000000000 [ 63.997842] ---[ end trace a49568284ce09eb6 ]--- [ 79.659127] nouveau 0000:03:00.0: imem: OOM: 00100000 00001000 -28 [ 79.659723] nouveau 0000:03:00.0: gr: TRAP_M2MF 00000002 [IN] [ 79.659729] nouveau 0000:03:00.0: gr: TRAP_M2MF 00320951 206f1fc0 00000000 04000430 [ 79.659733] nouveau 0000:03:00.0: gr: 00200000 [] ch 1 [000fbb0000 DRM] subc 4 class 5039 mthd 0100 data 00000000 [ 79.659746] nouveau 0000:03:00.0: fb: trapped read at 00206f0000 on channel 1...

Unmapping it while it's still in use (e.g. by M2MF) can lead to page faults and a lot of TRAP_M2MF spam in dmesg. Signed-off-by: Marcin Slusarz <marcin.slusarz at gmail.com> --- drivers/gpu/drm/nouveau/nouveau_abi16.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c index 4124192..3b6dc88 100644 ---...