Bug 153757 - Kernel panic using openchrome Xorg driver on 9-CURRENT
Summary: Kernel panic using openchrome Xorg driver on 9-CURRENT
Status: Open
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: Unspecified
Hardware: Any Any
: Normal Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-01-07 10:40 UTC by James Butler
Modified: 2017-12-31 22:34 UTC (History)
0 users

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Description James Butler 2011-01-07 10:40:01 UTC 
Machine is a (crappy) VIA A8V-MX motherboard with K8M800 IGP. I built and installed CURRENT to try the newish via drm bits, but starting X with the openchrome driver results in the following panic:

lock "via_blit_lk" 0xffffff80006b4de8 already initialized

with the backtrace:

db:0:kdb.enter.panic>  bt
Tracing pid 2613 tid 100108 td 0xfffffe0002d59000
kdb_enter() at kdb_enter+0x3d
panic() at panic+0x180
lock_init() at lock_init+0x6a
via_init_dmablit() at via_init_dmablit+0xc3
via_map_init() at via_map_init+0x146
drm_ioctl() at drm_ioctl+0x2f2
devfs_ioctl_f() at devfs_ioctl_f+0x7a
kern_ioctl() at kern_ioctl+0xbe
ioctl() at ioctl+0xfd
syscallenter() at syscallenter+0x1aa
syscall() at syscall+0x4c
Xfast_syscall() at Xfast_syscall+0xe2

Fix: 

Two workarounds I know of:
* Downgrade to 8.x
* Use the vesa driver
How-To-Repeat: On my K8M800-based machine:

Install the port x11-drivers/xf86-video-openchrome
Start Xorg
Comment 1 Eitan Adler freebsd_committer freebsd_triage 2017-12-31 08:01:07 UTC 
For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

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