https://bugzilla.kernel.org/show_bug.cgi?id=35192
URL: http://bugs.gentoo.org/show_bug.cgi?id=359281
Summary: BUG() in radeon driver with ATI Technologies Inc RV515
[Radeon X1300]
Product: Drivers
Version: 2.5
Kernel Version: 2.6.37 and 2.6.38
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
AssignedTo: drivers_video-...@kernel-bugs.osdl.org
ReportedBy: bluen...@gentoo.org
Regression: Yes
A regression in kernels 2.6.37 up to 2.6.38.6 hits a BUG() in the radeon driver
with the following hardware (as reported by lspci -kv)
02:00.0 VGA compatible controller: ATI Technologies Inc RV515 [Radeon X1300]
(prog-if 00 [VGA controller])
Subsystem: ATI Technologies Inc All-in-Wonder 2006 PCI-E Edition
Flags: bus master, fast devsel, latency 0, IRQ 40
Memory at e000 (64-bit, prefetchable) [size=256M]
Memory at fd9f (64-bit, non-prefetchable) [size=64K]
I/O ports at ce00 [size=256]
Expansion ROM at fd9c [disabled] [size=128K]
Capabilities: [50] Power Management version 2
Capabilities: [58] Express Endpoint, MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit+
Kernel driver in use: radeon
The BUG() is
kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
BUG: unable to handle kernel paging request at 81c0e711
IP: [81c0e711] platform_device_register_resndata+0x0/0x8c
PGD 1ae5067 PUD 1ae9063 PMD 3c473063 PTE 81c0e163
Oops: 0011 [#1] SMP
last sysfs file: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map
CPU 0
Pid: 1627, comm: X Tainted: GW 2.6.38.6 #1 HP Pavilion 061
ER900AA-ABA a1430n/NAGAMI
RIP: 0010:[81c0e711] [81c0e711]
platform_device_register_resndata+0x0/0x8c
RSP: 0018:88003a2b3d30 EFLAGS: 00010246
RAX: RBX: 88003cb81000 RCX:
RDX: RSI: 81a41cbb RDI:
RBP: 88003a2b3d88 R08: R09:
R10: 88003a34 R11: e000 R12:
R13: 88003cb80800 R14: 88003abeaa80 R15: 0001
FS: 7f40b4c72880() GS:88003fc0() knlGS:
CS: 0010 DS: ES: CR0: 80050033
CR2: 81c0e711 CR3: 3a2a8000 CR4: 06f0
DR0: DR1: DR2:
DR3: DR6: 0ff0 DR7: 0400
Process X (pid: 1627, threadinfo 88003a2b2000, task 88003d3ef1a0)
Stack:
8133aa29 0001 88003a2b3de8
811681fc 88003a2b3df8 88003abeaa80 88003cb80800
0040 40786440 0078 88003a2b3ea8
Call Trace:
[8133aa29] ? radeon_cp_init+0xd79/0x1180
[811681fc] ? ext4_file_write+0x6c/0x2a0
[81317439] drm_ioctl+0x389/0x4d0
[81339cb0] ? radeon_cp_init+0x0/0x1180
[8110ddfb] do_vfs_ioctl+0x9b/0x510
[8110e2bf] sys_ioctl+0x4f/0x80
[81002e2b] system_call_fastpath+0x16/0x1b
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00
RIP [81c0e711] platform_device_register_resndata+0x0/0x8c
RSP 88003a2b3d30
CR2: 81c0e711
---[ end trace f569524e57c84b79 ]---
More detail is avaiable in the following gentoo bug:
http://bugs.gentoo.org/show_bug.cgi?id=359281
We're looking into doing the git-bisect now.
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