Am 04.03.2014 11:56, schrieb Andreas Baierl:
Hi all,
it seems, that the G2D kernel driver has some issue:
libvdpau-sunxi uses G2D_CMD_BITBLT for creating surfaces, so at the
end of mixer_blt, there is g2d_wait_cmd_finish() called.
As soon as (timeout==0) gets TRUE in
https://github.com/linux-sunxi/linux-sunxi/blob/sunxi-3.4/drivers/char/sunxi_g2d/g2d.c#L120
, g2d stops working.
It's not possible to interact with /dev/g2d anymore until you reboot
(or possibly un-/reload the module).
I'm not sure how to exactly reproduce that. It mostly occurs the
second time i start VDR with libvdpau-sunxi and OSD.
Regards
rellla
I don't know if it's related to the above, but unloading the kernel
module g2d_23 after it stopped working with the "wait g2d irq pending
flag timeout" message shows me the following log:
[ 735.058259] [DISP] layer allocated: 0,102
[ 735.065332] [DISP] layer allocated: 0,103
[ 735.227857] wait g2d irq pending flag timeout
[ 783.215100] [DISP] layer released: 0,102
[ 783.222385] [DISP] layer released: 0,103
[ 792.500779] [DISP] layer released: 0,101
[ 792.541549] UMP<2>: Session closed
[ 795.070534] G2D: g2d_module_exit
[ 795.080032] G2D: Driver unloaded succesfully.
[ 795.092261] ------------[ cut here ]------------
[ 795.105471] WARNING: at drivers/base/core.c:196
device_release+0x78/0x84()
[ 795.122342] Device 'g2d' does not have a release() function, it is
broken and must be fixed.
[ 795.135209] Modules linked in: disp_ump mali_drm drm g2d_23(-)
sunxi_cedar_mod sw_ahci_platform mali ump
[ 795.162378] [<c0014a4c>] (unwind_backtrace+0x0/0x138) from
[<c0031e10>] (warn_slowpath_common+0x4c/0x64)
[ 795.183234] [<c0031e10>] (warn_slowpath_common+0x4c/0x64) from
[<c0031ebc>] (warn_slowpath_fmt+0x30/0x40)
[ 795.203586] [<c0031ebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0309ae0>] (device_release+0x78/0x84)
[ 795.223412] [<c0309ae0>] (device_release+0x78/0x84) from [<c028ba3c>]
(kobject_release+0x98/0x1bc)
[ 795.244079] [<c028ba3c>] (kobject_release+0x98/0x1bc) from
[<bf04f54c>] (g2d_module_exit+0x34/0x68 [g2d_23])
[ 795.266065] [<bf04f54c>] (g2d_module_exit+0x34/0x68 [g2d_23]) from
[<c006c00c>] (sys_delete_module+0x1ac/0x28c)
[ 795.287740] [<c006c00c>] (sys_delete_module+0x1ac/0x28c) from
[<c000ea80>] (ret_fast_syscall+0x0/0x30)
[ 795.304222] ---[ end trace ec0a564270cd7879 ]---
rellla
--
You received this message because you are subscribed to the Google Groups
"linux-sunxi" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to linux-sunxi+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
