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Xorg EQ overflowing in google maps on Firefox
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jhon987
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Joined: 18 Nov 2013
Posts: 225

PostPosted: Wed Apr 27, 2016 5:19 pm    Post subject: Xorg EQ overflowing in google maps on Firefox Reply with quote

Hi,

<preface>
So this isn't new to me, though on previous times I used the easy option and simply opted out of using Nouveau, however, it appears problems has the tendency to follow you around, especially when you run away from them.

Here it goes:
</preface>

When I use Nouveau driver and go inside Firefox browser into google maps the screen just freeze and nothing works besides hard reset (can't back out into console or anything). Xorg.0.log.old indicates:

Code:
(EE) [mi] EQ overflowing.  Additional events will be discarded until existing events are processed.
(EE)
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x56) [0x58ac76]
(EE) 1: /usr/bin/X (mieqEnqueue+0x24b) [0x56cddb]
(EE) 2: /usr/bin/X (QueuePointerEvents+0x52) [0x44f722]
(EE) 3: /usr/lib64/xorg/modules/input/evdev_drv.so (0x7fec9f87d000+0x60a7) [0x7fec9f8830a7]
(EE) 4: /usr/lib64/xorg/modules/input/evdev_drv.so (0x7fec9f87d000+0x685d) [0x7fec9f88385d]
(EE) 5: /usr/bin/X (0x400000+0x75628) [0x475628]
(EE) 6: /usr/bin/X (0x400000+0x9e8b7) [0x49e8b7]
(EE) 7: /lib64/libc.so.6 (0x7feca632d000+0x33370) [0x7feca6360370]
(EE) 8: /lib64/libc.so.6 (ioctl+0x5) [0x7feca640ec65]
(EE) 9: /usr/lib64/libdrm.so.2 (drmIoctl+0x28) [0x7feca74b2c68]
(EE) 10: /usr/lib64/libdrm.so.2 (drmCommandWrite+0x1b) [0x7feca74b598b]
(EE) 11: /usr/lib64/libdrm_nouveau.so.2 (nouveau_bo_wait+0xbc) [0x7feca298443c]
(EE) 12: /usr/lib64/libdrm_nouveau.so.2 (nouveau_pushbuf_space+0xde) [0x7feca298584e]
(EE) 13: /usr/lib64/xorg/modules/drivers/nouveau_drv.so (0x7feca2b89000+0x24611) [0x7feca2bad611]
(EE) 14: /usr/lib64/xorg/modules/drivers/nouveau_drv.so (0x7feca2b89000+0x7b81) [0x7feca2b90b81]
(EE) 15: /usr/lib64/xorg/modules/libexa.so (0x7feca2342000+0x88eb) [0x7feca234a8eb]
(EE) 16: /usr/bin/X (0x400000+0x117ae3) [0x517ae3]
(EE) 17: /usr/bin/X (0x400000+0xd31e6) [0x4d31e6]
(EE) 18: /usr/bin/X (0x400000+0xd45e5) [0x4d45e5]
(EE) 19: /usr/bin/X (0x400000+0x37e97) [0x437e97]
(EE) 20: /usr/bin/X (0x400000+0x3bfab) [0x43bfab]
(EE) 21: /lib64/libc.so.6 (__libc_start_main+0xf0) [0x7feca634d620]
(EE) 22: /usr/bin/X (_start+0x29) [0x4264c9]
(EE)
(EE) [mi] These backtraces from mieqEnqueue may point to a culprit higher up the stack.
(EE) [mi] mieq is *NOT* the cause.  It is a victim.
(EE) [mi] EQ overflow continuing.  100 events have been dropped.
(EE)
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x56) [0x58ac76]
(EE) 1: /usr/bin/X (QueuePointerEvents+0x52) [0x44f722]
(EE) 2: /usr/lib64/xorg/modules/input/evdev_drv.so (0x7fec9f87d000+0x60a7) [0x7fec9f8830a7]
(EE) 3: /usr/lib64/xorg/modules/input/evdev_drv.so (0x7fec9f87d000+0x685d) [0x7fec9f88385d]
(EE) 4: /usr/bin/X (0x400000+0x75628) [0x475628]
(EE) 5: /usr/bin/X (0x400000+0x9e8b7) [0x49e8b7]
(EE) 6: /lib64/libc.so.6 (0x7feca632d000+0x33370) [0x7feca6360370]
(EE) 7: /lib64/libc.so.6 (ioctl+0x5) [0x7feca640ec65]
(EE) 8: /usr/lib64/libdrm.so.2 (drmIoctl+0x28) [0x7feca74b2c68]
(EE) 9: /usr/lib64/libdrm.so.2 (drmCommandWrite+0x1b) [0x7feca74b598b]
(EE) 10: /usr/lib64/libdrm_nouveau.so.2 (nouveau_bo_wait+0xbc) [0x7feca298443c]
(EE) 11: /usr/lib64/libdrm_nouveau.so.2 (nouveau_pushbuf_space+0xde) [0x7feca298584e]
(EE) 12: /usr/lib64/xorg/modules/drivers/nouveau_drv.so (0x7feca2b89000+0x24611) [0x7feca2bad611]
(EE) 13: /usr/lib64/xorg/modules/drivers/nouveau_drv.so (0x7feca2b89000+0x7b81) [0x7feca2b90b81]
(EE) 14: /usr/lib64/xorg/modules/libexa.so (0x7feca2342000+0x88eb) [0x7feca234a8eb]
(EE) 15: /usr/bin/X (0x400000+0x117ae3) [0x517ae3]
(EE) 16: /usr/bin/X (0x400000+0xd31e6) [0x4d31e6]
(EE) 17: /usr/bin/X (0x400000+0xd45e5) [0x4d45e5]
(EE) 18: /usr/bin/X (0x400000+0x37e97) [0x437e97]
(EE) 19: /usr/bin/X (0x400000+0x3bfab) [0x43bfab]
(EE) 20: /lib64/libc.so.6 (__libc_start_main+0xf0) [0x7feca634d620]
(EE) 21: /usr/bin/X (_start+0x29) [0x4264c9]
(EE)
(EE) [mi] EQ overflow continuing.  200 events have been dropped.
(EE)
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x56) [0x58ac76]
(EE) 1: /usr/bin/X (QueuePointerEvents+0x52) [0x44f722]
(EE) 2: /usr/lib64/xorg/modules/input/evdev_drv.so (0x7fec9f87d000+0x60a7) [0x7fec9f8830a7]
(EE) 3: /usr/lib64/xorg/modules/input/evdev_drv.so (0x7fec9f87d000+0x685d) [0x7fec9f88385d]
(EE) 4: /usr/bin/X (0x400000+0x75628) [0x475628]
(EE) 5: /usr/bin/X (0x400000+0x9e8b7) [0x49e8b7]
(EE) 6: /lib64/libc.so.6 (0x7feca632d000+0x33370) [0x7feca6360370]
(EE) 7: /lib64/libc.so.6 (ioctl+0x5) [0x7feca640ec65]
(EE) 8: /usr/lib64/libdrm.so.2 (drmIoctl+0x28) [0x7feca74b2c68]
(EE) 9: /usr/lib64/libdrm.so.2 (drmCommandWrite+0x1b) [0x7feca74b598b]
(EE) 10: /usr/lib64/libdrm_nouveau.so.2 (nouveau_bo_wait+0xbc) [0x7feca298443c]
(EE) 11: /usr/lib64/libdrm_nouveau.so.2 (nouveau_pushbuf_space+0xde) [0x7feca298584e]
(EE) 12: /usr/lib64/xorg/modules/drivers/nouveau_drv.so (0x7feca2b89000+0x24611) [0x7feca2bad611]
(EE) 13: /usr/lib64/xorg/modules/drivers/nouveau_drv.so (0x7feca2b89000+0x7b81) [0x7feca2b90b81]
(EE) 14: /usr/lib64/xorg/modules/libexa.so (0x7feca2342000+0x88eb) [0x7feca234a8eb]
(EE) 15: /usr/bin/X (0x400000+0x117ae3) [0x517ae3]
(EE) 16: /usr/bin/X (0x400000+0xd31e6) [0x4d31e6]
(EE) 17: /usr/bin/X (0x400000+0xd45e5) [0x4d45e5]
(EE) 18: /usr/bin/X (0x400000+0x37e97) [0x437e97]
(EE) 19: /usr/bin/X (0x400000+0x3bfab) [0x43bfab]
(EE) 20: /lib64/libc.so.6 (__libc_start_main+0xf0) [0x7feca634d620]
(EE) 21: /usr/bin/X (_start+0x29) [0x4264c9]
(EE)
(EE) [mi] EQ overflow continuing.  300 events have been dropped.
(EE)


This continues until 1000 events and then the log stops.

I've google around and found that by turning off hardware acceleration in Firefox the problem goes away - but this isn't optimal solution - Firefox is slower this way...

If you're curious why I don't use Nvidia driver then - it has issues of it's own: it also causes hard freezes but they are more random and only if I set powermizer to maximum it stops but then my work room is so hot it's like a sauna, so...


Last edited by jhon987 on Thu Apr 28, 2016 7:49 pm; edited 1 time in total
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chithanh
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Joined: 05 Aug 2006
Posts: 2152
Location: Berlin, Germany

PostPosted: Thu Apr 28, 2016 1:38 pm    Post subject: Reply with quote

There is probably not much you can do, except trying newer kernel/mesa and reporting a bug at https://bugs.freedesktop.org/

You might want to check if launching firefox with LIBGL_ALWAYS_SOFTWARE=1 instead of disabling hardware acceleration via about:config performs better.
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jhon987
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Joined: 18 Nov 2013
Posts: 225

PostPosted: Thu Apr 28, 2016 7:46 pm    Post subject: Reply with quote

chithanh wrote:
There is probably not much you can do, except trying newer kernel/mesa and reporting a bug at https://bugs.freedesktop.org/

Yeah, I had a feeling I might get this answer (if any)...
I'm not looking for ways around it.

Thank you anyways
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