On 2018-05-15 08:38 AM, Paul Menzel wrote: > On 2018-05-14 10:44, Michel Dänzer wrote: >> On 2018-05-13 11:01 AM, Paul Menzel wrote: >>> Dear Linux AMD folks, >>> >>> >>> There is a regression introduced by a commit after Linux 4.17-rc4 >>> causing the X.Org X server start to fail with the Radeon module loaded >>> on Debian Sid/unstable. The same Linux kernel build works with the >>> modesetting driver on the same system (no module *radeon* loaded) and >>> with i915 and the modesetting driver on a different system with Debian >>> 9.4 (Stretch/stable). >>> >>>> [   16.263] xf86EnableIOPorts: failed to set IOPL for I/O (Operation >>>> not permitted) >>>> [�] >>>> [   16.765] (EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x50) >>>> [0x5b4e60] >>>> [   16.766] (EE) 1: /usr/lib/xorg/Xorg (0x40d000+0x1abd92) [0x5b8d92] >>>> [   16.766] (EE) 2: linux-gate.so.1 (__kernel_rt_sigreturn+0x0) >>>> [0xb7f2ad5c] >>>> [   16.766] (EE) 3: /lib/i386-linux-gnu/libc.so.6 >>>> (0xb78a0000+0x140099) [0xb79e0099] >>>> [   16.766] (EE) 4: /usr/lib/i386-linux-gnu/dri/r600_dri.so >>>> (0xb62f9000+0x6698fd) [0xb69628fd] >> >> Crashes in r600_dri.so => most likely a Mesa bug. Can you get a gdb >> backtrace of the crash? > > ``` > #0 0xb7f1bd45 in __kernel_vsyscall () > #1 0xb78bd5b2 in __libc_signal_restore_set (set=0xbf93883c) at > ../sysdeps/unix/sysv/linux/nptl-signals.h:80 > #2 __GI_raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:48 > #3 0xb78be9d1 in __GI_abort () at abort.c:79 > #4 0x0061bf45 in OsAbort () at ../../../../os/utils.c:1361 > #5 0x004ec96c in ddxGiveUp (error=EXIT_ERR_ABORT) at > ../../../../../../hw/xfree86/common/xf86Init.c:1011 > #6 0x004eca05 in AbortDDX (error=EXIT_ERR_ABORT) at > ../../../../../../hw/xfree86/common/xf86Init.c:1055 > #7 0x00621c6f in AbortServer () at ../../../../os/log.c:874 > #8 0x00622654 in FatalError (f=0x650110 "Caught signal %d (%s). Server > aborting\n") at ../../../../os/log.c:1015 > #9 0x00618def in OsSigHandler (signo=11, sip=0xbf938b4c, > unused=0xbf938bcc) at ../../../../os/osinit.c:154 > #10 <signal handler called> > #11 __memcpy_ssse3 () at ../sysdeps/i386/i686/multiarch/memcpy-ssse3.S:144 > #12 0xb69518fd in memcpy (__len=48, __src=<optimized out>, > __dest=<optimized out>) at > /usr/include/i386-linux-gnu/bits/string_fortified.h:34 > #13 r600_create_vertex_fetch_shader (ctx=0xf08e40, count=2, > elements=0xbf93933c) at > ../../../../../src/gallium/drivers/r600/r600_asm.c:2701 Does https://cgit.freedesktop.org/~airlied/linux/commit/?h=drm-fixes&id=76ef6b28ea4f81c3d511866a9b31392caa833126 help? BTW, if the CPU in this system is 64-bit capable, I'd recommend running a 64-bit X server. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
