On Fri, Apr 17, 2015 at 11:16 PM, Rebecca N. Palmer <rebecca_pal...@zoho.com> wrote: >> now every kernel invocation, regardless of arguments >> counts and array sizes, fails > > i.e. including ones that worked in 1.0.2-1?
Yes. > Do they use the 'local' memory > space (which triggers a third known bug on Haswell)? No, even the most trivial inits that simply writes to gmem fails the same way. >> drm_intel_gem_bo_context_exec() failed: Invalid argument > > That's the error check added by this patch, but not the same error code as I > get for a too-large array on Ivy Bridge (that's > "drm_intel_gem_bo_context_exec() failed: No space left on device"), so may > be it catching a different bug. > > I will report this upstream. Quite possible. >> sudo cat /sys/module/i915/parameters/enable_cmd_parser >> returns 1 > > That means you don't have the #767148 workaround enabled. Does it ( sudo > echo 0 > /sys/module/i915/parameters/enable_cmd_parser ) help? Absolutely yes. I can e.g. manipulate arrays with up to 128Mi elements, and if I go too high I get the "No space left on device" error instead. So it looks like I _do_ need that workaround. > What are your other i915 parameters ( sudo head > /sys/module/i915/parameters/* )? With the enable_cmd_parser set to 0 as above, this is the whole dump: ==> /sys/module/i915/parameters/disable_display <== N ==> /sys/module/i915/parameters/disable_power_well <== 1 ==> /sys/module/i915/parameters/disable_vtd_wa <== N ==> /sys/module/i915/parameters/enable_cmd_parser <== 0 ==> /sys/module/i915/parameters/enable_fbc <== -1 ==> /sys/module/i915/parameters/enable_hangcheck <== Y ==> /sys/module/i915/parameters/enable_ips <== 1 ==> /sys/module/i915/parameters/enable_ppgtt <== 1 ==> /sys/module/i915/parameters/enable_psr <== 0 ==> /sys/module/i915/parameters/enable_rc6 <== 1 ==> /sys/module/i915/parameters/fastboot <== N ==> /sys/module/i915/parameters/invert_brightness <== 0 ==> /sys/module/i915/parameters/lvds_channel_mode <== 0 ==> /sys/module/i915/parameters/lvds_downclock <== 0 ==> /sys/module/i915/parameters/lvds_use_ssc <== -1 ==> /sys/module/i915/parameters/modeset <== -1 ==> /sys/module/i915/parameters/panel_ignore_lid <== 1 ==> /sys/module/i915/parameters/powersave <== 1 ==> /sys/module/i915/parameters/prefault_disable <== N ==> /sys/module/i915/parameters/preliminary_hw_support <== 0 ==> /sys/module/i915/parameters/reset <== Y ==> /sys/module/i915/parameters/semaphores <== -1 ==> /sys/module/i915/parameters/vbt_sdvo_panel_type <== -1 -- Giuseppe "Oblomov" Bilotta -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
