i915 update to Linux 3.8 ready!
Frederic Chardon
chardon.frederic at gmail.com
Fri Mar 11 20:23:48 UTC 2016
Hi!
I now have a very reproducible panic in Xorg on my 965GM (Dell Latitude
D630). No problem at the console with i915kms loaded.
vm_fault: pager read error, pid 44151 (Xorg)
Kernel page fault with the following non-sleepable locks held:
exclusive rw vm object (vm object) r = 0 (0xfffff80205757528) locked @
/usr/src/sys/modules/drm2/i915kms/../../../dev/drm2/i915/i915_gem.c:1626
stack backtrace:
#0 0xffffffff80405490 at witness_debugger+0x70
#1 0xffffffff80406777 at witness_warn+0x3d7
#2 0xffffffff805eb137 at trap_pfault+0x57
#3 0xffffffff805ea7c4 at trap+0x284
#4 0xffffffff805cc857 at calltrap+0x8
#5 0xffffffff805a1428 at vm_fault+0x78
#6 0xffffffff805eb1f5 at trap_pfault+0x115
#7 0xffffffff805ea882 at trap+0x342
#8 0xffffffff805cc857 at calltrap+0x8
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x30
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff805a2822
stack pointer = 0x28:0xfffffe0201e54840
frame pointer = 0x28:0xfffffe0201e54940
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 3
current process = 44151 (Xorg)
trap number = 12
panic: page fault
cpuid = 0
KDB: stack backtrace:
db_trace_self_wrapper() at 0xffffffff802d606b =
db_trace_self_wrapper+0x2b/frame 0xfffffe0201e543d0
vpanic() at 0xffffffff803ab112 = vpanic+0x182/frame 0xfffffe0201e54450
panic() at 0xffffffff803ab193 = panic+0x43/frame 0xfffffe0201e544b0
trap_fatal() at 0xffffffff805eb0d1 = trap_fatal+0x351/frame
0xfffffe0201e54510
trap_pfault() at 0xffffffff805eb2dd = trap_pfault+0x1fd/frame
0xfffffe0201e54570
trap() at 0xffffffff805ea7c4 = trap+0x284/frame 0xfffffe0201e54780
calltrap() at 0xffffffff805cc857 = calltrap+0x8/frame 0xfffffe0201e54780
--- trap 0xc, rip = 0xffffffff805a2822, rsp = 0xfffffe0201e54850, rbp =
0xfffffe0201e54940 ---
vm_fault_hold() at 0xffffffff805a2822 = vm_fault_hold+0x13b2/frame
0xfffffe0201e54940
vm_fault() at 0xffffffff805a1428 = vm_fault+0x78/frame 0xfffffe0201e54980
trap_pfault() at 0xffffffff805eb1f5 = trap_pfault+0x115/frame
0xfffffe0201e549e0
trap() at 0xffffffff805ea882 = trap+0x342/frame 0xfffffe0201e54bf0
calltrap() at 0xffffffff805cc857 = calltrap+0x8/frame 0xfffffe0201e54bf0
--- trap 0xc, rip = 0x8024f1ea6, rsp = 0x7fffffffe378, rbp = 0x7fffffffe3c0
---
Uptime: 3m41s
2016-03-08 22:07 GMT+01:00 Jean-Sébastien Pédron <dumbbell at freebsd.org>:
> Hi!
>
> The i915 update is now in HEAD as of r296548:
> https://lists.freebsd.org/pipermail/svn-src-head/2016-March/083332.html
>
> The most eagerly awaited feature is the initial Haswell support. It's
> not rock solid but it works.
>
> Our whole DRM is now on the same page, Linux 3.8. Now, let's turn that
> page!
>
> Thanks to the numerous testers \o/
>
> --
> Jean-Sébastien Pédron
>
>
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