Re: Xorg stuck in drmlk2

[Giulio Piemontese <g.piemontese%email.it@localhost>]

hi everyone,

I'm having the same locking issue here (NetBSD-current/i386 + mesa7.0.3 
+ xf86-video-mga1.4.8),
except for the fact that X freezes immediately on startup, so I can't 
run any app
(just move the mouse on a blank screen, as keyboard's not responding).

Here's is the dmesg output with the debug turned on:

[drm:pid629:drm_ioctl] pid=629, cmd=0x8008642a, nr=0x2a, dev 0xc0e26800, 
auth=1
[drm:pid629:drm_lock] 1 (pid 629) requests lock (0xe0008000), flags = 
0x00000000
[drm:pid629:drm_lock] 1 interrupted
[drm:pid629:drm_ioctl]     returning 4
[drm:pid629:drm_ioctl] pid=629, cmd=0x8008642a, nr=0x2a, dev 0xc0e26800, 
auth=1
[drm:pid629:drm_lock] 1 (pid 629) requests lock (0xe0008000), flags = 
0x00000000
[drm:pid629:drm_lock] 1 interrupted
[drm:pid629:drm_ioctl]     returning 4
[drm:pid629:drm_ioctl] pid=629, cmd=0x8008642a, nr=0x2a, dev 0xc0e26800, 
auth=1
[drm:pid629:drm_lock] 1 (pid 629) requests lock (0xe0008000), flags = 
0x00000000
[drm:pid629:drm_lock] 1 interrupted
[drm:pid629:drm_ioctl]     returning 4
[drm:pid629:drm_ioctl] pid=629, cmd=0x8008642a, nr=0x2a, dev 0xc0e26800, 
auth=1
[drm:pid629:drm_lock] 1 (pid 629) requests lock (0xe0008000), flags = 
0x00000000

the log actually ends here (drm_ioctl does not return)

at the same time (until it freezes) Xorg echoes tons of this error message:

mieqEnequeue: out-of-order valuator event; dropping
tossed event which came in late

then the xserver lies mtsleeping():

 629 Giulio    39    0  1900K   12M drmlk2     0:11 24.22% 19.58% Xorg

No idea about the error reason, neither if the interrupted ioctl locks 
("returning EINTR")
have something to do with the lockup.

Giulio