Kernel 3.14.0-12041-g75ff24f from 9.4.2014 introduces the following on the console (driver is i915): [drm:ivb_err_int_handler] *ERROR* Pipe B FIFO underrun [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO underrun [drm:cpt_serr_int_handler] *ERROR* PCH transcoder B FIFO underrun In syslog I find: ------------[ cut here ]------------ WARNING: CPU: 1 PID: 1 at /data/kernel/linux/drivers/gpu/drm/drm_mm.c:211 0xffffffffb22a70fa() no hole found for node 0x0 + 0x300000 CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.14.0-12041-g75ff24f #45 Hardware name: FUJITSU LIFEBOOK AH532/FJNBB1C, BIOS Version 1.09 05/22/2012 0000000000000000 ffffffffb2967138 ffffffffb262ae5d ffff8802160d5a58 ffffffffb20391ad ffff880214994000 0000000000300000 0000000000000000 ffff880214952800 0000000000000000 ffffffffb2039255 ffffffffb2967190 Call Trace: [<ffffffffb262ae5d>] ? 0xffffffffb262ae5d [<ffffffffb20391ad>] ? 0xffffffffb20391ad [<ffffffffb2039255>] ? 0xffffffffb2039255 [<ffffffffb22a70fa>] ? 0xffffffffb22a70fa [<ffffffffb22d4b11>] ? 0xffffffffb22d4b11 [<ffffffffb2300f92>] ? 0xffffffffb2300f92 [<ffffffffb232af7b>] ? 0xffffffffb232af7b [<ffffffffb232f675>] ? 0xffffffffb232f675 [<ffffffffb21fa38c>] ? 0xffffffffb21fa38c [<ffffffffb232ec04>] ? 0xffffffffb232ec04 [<ffffffffb2622997>] ? 0xffffffffb2622997 [<ffffffffb232ee62>] ? 0xffffffffb232ee62 [<ffffffffb22a6a5b>] ? 0xffffffffb22a6a5b [<ffffffffb22a3994>] ? 0xffffffffb22a3994 [<ffffffffb22a5a38>] ? 0xffffffffb22a5a38 [<ffffffffb221a019>] ? 0xffffffffb221a019 [<ffffffffb23327b8>] ? 0xffffffffb23327b8 [<ffffffffb2332a03>] ? 0xffffffffb2332a03 [<ffffffffb2332970>] ? 0xffffffffb2332970 [<ffffffffb2330c45>] ? 0xffffffffb2330c45 [<ffffffffb2331534>] ? 0xffffffffb2331534 [<ffffffffb2332fce>] ? 0xffffffffb2332fce [<ffffffffb2aa2cc5>] ? 0xffffffffb2aa2cc5 [<ffffffffb2a7fe45>] ? 0xffffffffb2a7fe45 [<ffffffffb2052100>] ? 0xffffffffb2052100 [<ffffffffb2a7ffe2>] ? 0xffffffffb2a7ffe2 [<ffffffffb2a7f79e>] ? 0xffffffffb2a7f79e [<ffffffffb2624d20>] ? 0xffffffffb2624d20 [<ffffffffb2624d29>] ? 0xffffffffb2624d29 [<ffffffffb263223c>] ? 0xffffffffb263223c [<ffffffffb2624d20>] ? 0xffffffffb2624d20 ---[ end trace 0d3f14b61bc31dab ]--- This does not happen in 3.14.0-11030-ga7963eb from 8.4.2014 and never before. Suppose merge 12024 e9f37d3 Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux produces this problem. Jörg _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel