Created attachment 118831 [details] dmesg output [45997.506366] general protection fault: 0000 [#3] SMP. [45997.507288] Modules linked in: rfcomm nls_utf8 isofs fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT xt_conntrack cfg80211 ebtable_nat ebtable_broute bridge stp llc ebtable_filt [45997.510385] microcode snd_pcm serio_raw i2c_i801 r8169 mii lpc_ich mfd_core snd_page_alloc shpchp snd_timer mei_me mei snd soundcore parport_pc parport binfmt_misc i915 i2c_algo_bit drm_kms_helper drm i2c_co [45997.512521] CPU: 6 PID: 2415 Comm: chrome Tainted: G D 3.12.5-301.fc20.x86_64 #1 [45997.513602] Hardware name: Gigabyte Technology Co., Ltd. Z87M-D3H/Z87M-D3H, BIOS F8 08/03/2013 [45997.514725] task: ffff880813564200 ti: ffff8807ef528000 task.ti: ffff8807ef528000 [45997.515765] RIP: 0010:[<ffffffffa009b8aa>] [<ffffffffa009b8aa>] i915_gem_object_sync+0x6a/0xd0 [i915] [45997.516909] RSP: 0018:ffff8807ef529c70 EFLAGS: 00010282 [45997.518029] RAX: ffffffffb3c9ca1e RBX: 0008000000000000 RCX: 00000000ffffffff [45997.519136] RDX: 00000000b3c9ca1e RSI: ffff88081060d7a8 RDI: ffff880811909800 [45997.520243] RBP: ffff8807ef529c98 R08: ffff88007c1e9c68 R09: ffff88007c1e9c00 [45997.521364] R10: ffff88081060e5a8 R11: 00000000000000cd R12: ffff8804e617f2c0 [45997.522524] R13: ffff88081060d7a8 R14: 0000000000000000 R15: 0007fffecf272878 [45997.523690] FS: 00007f555a812a00(0000) GS:ffff88083f380000(0000) knlGS:0000000000000000 [45997.524880] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [45997.526022] CR2: 0000399ecb1f3004 CR3: 00000007ebaca000 CR4: 00000000001407e0 [45997.527143] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [45997.528253] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [45997.529395] Stack: [45997.530490] ffff88081060d7a8 ffff8804cb2df000 0000000000000040 ffff8804e617f2c0 [45997.531607] 0000000000000000 ffff8807ef529d80 ffffffffa00a42c5 ffff880813564200 [45997.532719] 0000000000000001 ffff8807ef529e40 ffff8807ef529e20 ffff88083f5e9b08 [45997.533840] Call Trace: [45997.535008] [<ffffffffa00a42c5>] i915_gem_do_execbuffer.isra.20+0x5d5/0x1060 [i915] [45997.536194] [<ffffffffa00a51e1>] ? i915_gem_execbuffer2+0x51/0x280 [i915] [45997.537392] [<ffffffffa00a522d>] i915_gem_execbuffer2+0x9d/0x280 [i915] [45997.538495] [<ffffffffa0020c32>] drm_ioctl+0x502/0x630 [drm] [45997.539625] [<ffffffff811689d5>] ? tlb_finish_mmu+0x55/0x60 [45997.540729] [<ffffffff815796d5>] ? sk_run_filter+0x295/0x700 [45997.541825] [<ffffffff811c0f1d>] do_vfs_ioctl+0x2dd/0x4b0 [45997.542896] [<ffffffff811c1171>] SyS_ioctl+0x81/0xa0 [45997.543963] [<ffffffff81672cf7>] tracesys+0xdd/0xe2 [45997.545044] Code: ba cf 46 7d 67 a3 be b3 51 45 8b b4 24 70 01 00 00 48 29 d8 48 c1 f8 03 48 0f af c2 8d 50 03 83 e8 01 0f 48 c2 48 98 4c 8d 3c 83 <45> 3b 77 68 77 28 31 c0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f [45997.546179] RIP [<ffffffffa009b8aa>] i915_gem_object_sync+0x6a/0xd0 [i915] [45997.547314] RSP <ffff8807ef529c70> [45997.548352] ---[ end trace 9e4b3aa6b18cdd53 ]---
Is this the same machine you've been posting all the other random memory errors from ?
After a complete reinstallation Fedora 20 on new SSD their errors are gone. These errors started after the kernel has been updated to 3.12.5 before it was working kernel 3.11.10
*** This bug has been marked as a duplicate of bug 64521 ***