Created attachment 857642 [details] kernel log Description of problem: [ 1204.058907] general protection fault: 0000 [#1] SMP [ 1204.058923] Modules linked in: rfcomm nls_utf8 isofs fuse joydev btusb ip6t_rpfilter ip6t_REJECT bnep bluetooth xt_conntrack cfg80211 rfkill ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw vfat fat x86_pkg_temp_thermal coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul crc32c_intel iTCO_wdt ghash_clmulni_intel iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_hdmi microcode snd_hda_intel serio_raw snd_hda_codec i2c_i801 snd_hwdep r8169 snd_seq snd_seq_device mii snd_pcm lpc_ich mfd_core shpchp mei_me snd_page_alloc mei snd_timer [ 1204.059114] snd soundcore binfmt_misc hid_logitech_dj usb_storage i915 i2c_algo_bit drm_kms_helper drm i2c_core video [ 1204.059141] CPU: 0 PID: 1638 Comm: pulseaudio Not tainted 3.12.9-300.fc20.x86_64 #1 [ 1204.059157] Hardware name: Gigabyte Technology Co., Ltd. Z87M-D3H/Z87M-D3H, BIOS F9a 09/30/2013 [ 1204.059175] task: ffff8807d9702940 ti: ffff8807cc592000 task.ti: ffff8807cc592000 [ 1204.059190] RIP: 0010:[<ffffffff811c3058>] [<ffffffff811c3058>] do_sys_poll+0x2c8/0x560 [ 1204.059210] RSP: 0018:ffff8807cc593b08 EFLAGS: 00010282 [ 1204.059221] RAX: bfffffff81896c40 RBX: ffff8807cc593c6c RCX: ffff8807df8fb500 [ 1204.059236] RDX: ffff8807df8fb500 RSI: ffff8807cc593b64 RDI: 0000000000000002 [ 1204.059250] RBP: ffff8807cc593f08 R08: 0000000000000001 R09: 0000000000000000 [ 1204.059264] R10: 0000000000000004 R11: 0000000000000005 R12: 0000000000000000 [ 1204.059278] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8807cc593bd4 [ 1204.059293] FS: 00007f5d59ec67c0(0000) GS:ffff88081f200000(0000) knlGS:0000000000000000 [ 1204.059309] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1204.059320] CR2: 00003583ea0a4008 CR3: 00000007d2ec5000 CR4: 00000000001407f0 [ 1204.059335] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1204.059349] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1204.059363] Stack: [ 1204.059367] 00000000011ee8a0 ffff8807cc593fd8 ffff8807d9702940 00ffffff815625b9 [ 1204.059385] 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 1204.059402] ffff8807cc593b70 0000000100000000 ffff880700000000 00000001cc593c68 [ 1204.059420] Call Trace: [ 1204.059428] [<ffffffff8160cfbe>] ? unix_stream_recvmsg+0x5de/0x870 [ 1204.059442] [<ffffffff811c1d30>] ? poll_select_copy_remaining+0x130/0x130 [ 1204.059457] [<ffffffff811c1d30>] ? poll_select_copy_remaining+0x130/0x130 [ 1204.059472] [<ffffffff811c1d30>] ? poll_select_copy_remaining+0x130/0x130 [ 1204.059486] [<ffffffff811c1d30>] ? poll_select_copy_remaining+0x130/0x130 [ 1204.059501] [<ffffffff811c1d30>] ? poll_select_copy_remaining+0x130/0x130 [ 1204.059515] [<ffffffff811c1d30>] ? poll_select_copy_remaining+0x130/0x130 [ 1204.059529] [<ffffffff811c1d30>] ? poll_select_copy_remaining+0x130/0x130 [ 1204.059544] [<ffffffff811c1d30>] ? poll_select_copy_remaining+0x130/0x130 [ 1204.059558] [<ffffffff811c1d30>] ? poll_select_copy_remaining+0x130/0x130 [ 1204.059573] [<ffffffff811c3608>] SyS_ppoll+0x1a8/0x1c0 [ 1204.059585] [<ffffffff810f13b6>] ? __audit_syscall_exit+0x1f6/0x2a0 [ 1204.059600] [<ffffffff81676aa9>] system_call_fastpath+0x16/0x1b [ 1204.059613] Code: 00 00 90 48 8d 74 24 5c e8 d6 73 00 00 48 85 c0 48 89 c1 44 8b 44 24 5c 0f 84 6d 01 00 00 48 8b 40 28 48 85 c0 0f 84 78 01 00 00 <48> 8b 50 38 b8 45 01 00 00 48 85 d2 74 47 41 0f b7 47 04 44 89 [ 1204.059689] RIP [<ffffffff811c3058>] do_sys_poll+0x2c8/0x560 [ 1204.059702] RSP <ffff8807cc593b08> [ 1204.064963] ---[ end trace 7ecd704773fa1996 ]---
The address bfffffff81896c40 should be ffffffff81896c40 but a single bit got flipped from 1 to 0. Sounds like a hardware problem.
Created attachment 858023 [details] Memory 100% fine after 145 hours test!!!
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 20 kernel bugs. Fedora 20 has now been rebased to 3.13.4-200.fc20. Please test this kernel update and let us know if you issue has been resolved or if it is still present with the newer kernel. If you experience different issues, please open a new bug report for those.
*** This bug has been marked as a duplicate of bug 1060509 ***