https://bugzilla.kernel.org/show_bug.cgi?id=105711
Bug ID: 105711 Summary: amdgpu: no monitor signal and kernel panic Product: Drivers Version: 2.5 Kernel Version: 4.3-rc4 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: polynomial-c@gmx.de Regression: No
Created attachment 189801 --> https://bugzilla.kernel.org/attachment.cgi?id=189801&action=edit kernel dmesg output
As soon as the driver gets loaded the monitor looses the signal and doesn't get it back. After a while the kernel panics so even network connections get lost:
[ 751.713493] Task dump for CPU 7: [ 751.713496] modprobe R running task 0 2994 2968 0x0000000a [ 751.713506] ffff88063a72ae00 ffffffff818809f9 ffff88063a72ae00 0000000000000007 [ 751.713513] ffff88063a72ae00 0000000000000000 ffff8800a6658000 00000000ffffffff [ 751.713519] 0000000000000000 ffff8800a6658000 ffff880634b20000 ffffffff818814b2 [ 751.713525] Call Trace: [ 751.713532] [<ffffffff818809f9>] ? 0xffffffff818809f9 [ 751.713536] [<ffffffff818814b2>] ? 0xffffffff818814b2 [ 751.713539] [<ffffffff81885180>] ? 0xffffffff81885180 [ 751.713543] [<ffffffffa00232ca>] ? 0xffffffffa00232ca [ 751.713547] [<ffffffff814f6c8c>] ? 0xffffffff814f6c8c [ 751.713550] [<ffffffffa005933c>] ? 0xffffffffa005933c [ 751.713553] [<ffffffffa005c69e>] ? 0xffffffffa005c69e [ 751.713557] [<ffffffffa0018cba>] ? 0xffffffffa0018cba [ 751.713560] [<ffffffffa001a5c1>] ? 0xffffffffa001a5c1 [ 751.713563] [<ffffffff815c7893>] ? 0xffffffff815c7893 [ 751.713566] [<ffffffff815c9589>] ? 0xffffffff815c9589 [ 751.713569] [<ffffffff81526b58>] ? 0xffffffff81526b58 [ 751.713572] [<ffffffff81526abf>] ? 0xffffffff81526abf [ 751.713575] [<ffffffff81527193>] ? 0xffffffff81527193 [ 751.713578] [<ffffffff815e4334>] ? 0xffffffff815e4334 [ 751.713581] [<ffffffff815e458d>] ? 0xffffffff815e458d [ 751.713584] [<ffffffff815e4500>] ? 0xffffffff815e4500 [ 751.713586] [<ffffffff815e2585>] ? 0xffffffff815e2585 [ 751.713589] [<ffffffff815e3af1>] ? 0xffffffff815e3af1 [ 751.713592] [<ffffffffa0088000>] ? 0xffffffffa0088000 [ 751.713595] [<ffffffff815e4b42>] ? 0xffffffff815e4b42 [ 751.713598] [<ffffffffa0088000>] ? 0xffffffffa0088000 [ 751.713601] [<ffffffff8100036b>] ? 0xffffffff8100036b [ 751.713604] [<ffffffff8113065c>] ? 0xffffffff8113065c [ 751.713607] [<ffffffff810fb8d4>] ? 0xffffffff810fb8d4 [ 751.713610] [<ffffffff810f94d0>] ? 0xffffffff810f94d0 [ 751.713615] [<ffffffff810fbe42>] ? 0xffffffff810fbe42 [ 751.713618] [<ffffffff81884697>] ? 0xffffffff81884697 [ 751.713626] rcu_preempt kthread starved for 24577 jiffies! g2247 c2246 f0x0 s3 ->state=0x0
Same problem happens with vanilla kernel-4.2.3