Additional info: reporter: libreport-2.1.12 WARNING: CPU: 1 PID: 19574 at lib/list_debug.c:62 __list_del_entry+0x82/0xd0() list_del corruption. next->prev should be ffff880007c510f8, but was (null) Modules linked in: fuse ses enclosure usb_storage ip6t_rpfilter bnep bluetooth ip6t_REJECT cfg80211 rfkill xt_conntrack 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 snd_hda_codec_realtek iTCO_wdt gpio_ich iTCO_vendor_support coretemp kvm_intel kvm serio_raw crc32c_intel e1000e snd_hda_intel ptp pps_core snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm lpc_ich i2c_i801 mfd_core microcode usblp shpchp i7core_edac edac_core ioatdma dca snd_page_alloc snd_timer snd soundcore acpi_cpufreq nfsd auth_rpcgss nfs_acl lockd sunrpc binfmt_misc nouveau video i2c_algo_bit drm_kms_helper mxm_wmi ttm firewire_ohci drm firewire_core ata_generic pata_acpi crc_itu_t i2c_core wmi CPU: 1 PID: 19574 Comm: rsync Not tainted 3.13.4-200.fc20.x86_64 #1 Hardware name: Supermicro X8SAX/X8SAX, BIOS 1.0b 02/25/2009 0000000000000009 ffff8801652a5d78 ffffffff81686b68 ffff8801652a5dc0 ffff8801652a5db0 ffffffff8106d47d ffff880007c50ff0 ffff880007c510f8 ffffffff8182c8e0 ffffffff8182c8e0 ffff8801bdb3c6c0 ffff8801652a5e10 Call Trace: [<ffffffff81686b68>] dump_stack+0x45/0x56 [<ffffffff8106d47d>] warn_slowpath_common+0x7d/0xa0 [<ffffffff8106d4ec>] warn_slowpath_fmt+0x4c/0x50 [<ffffffff8132c882>] __list_del_entry+0x82/0xd0 [<ffffffff811d3073>] evict+0x73/0x190 [<ffffffff811d38a5>] iput+0xf5/0x180 [<ffffffff811c66be>] do_unlinkat+0x18e/0x2b0 [<ffffffff811bdc42>] ? SYSC_newlstat+0x32/0x40 [<ffffffff811c9a96>] SyS_unlink+0x16/0x20 [<ffffffff81695b69>] system_call_fastpath+0x16/0x1b
Created attachment 870198 [details] File: dmesg
got similar crash, logged: Mar 5 14:05:26 r1epi kernel: [1404949.416764] ------------[ cut here ]------------ Mar 5 14:05:26 r1epi kernel: [1404949.416771] WARNING: CPU: 6 PID: 660 at lib/list_debug.c:53 __list_del_entry+0x63/0xd0() Mar 5 14:05:26 r1epi kernel: [1404949.416772] list_del corruption, ffff8801148617f0->next is LIST_POISON1 (dead000000100100) Mar 5 14:05:26 r1epi kernel: [1404949.416773] Modules linked in: binfmt_misc xt_iprange bonding ip6t_REJECT nf_conntrack_ipv6 nf_conntrack_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 xt _conntrack nf_conntrack ip6table_filter ip6_tables snd_hda_codec_hdmi snd_hda_codec_realtek iTCO_wdt iTCO_vendor_support btrfs raid6_pq libcrc32c xor x86_pkg_temp_thermal corete mp kvm eeepc_wmi asus_wmi sparse_keymap mxm_wmi crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel btusb bluetooth i2c_i801 microcode snd_hda_intel snd_hda_codec serio_raw rfkill lpc_ich e1000 snd_hwdep mfd_core snd_pcm snd_page_alloc snd_timer snd soundcore e1000e mei_me ptp mei pps_core shpchp nfsd wmi auth_rpcgss nfs_acl lockd sunrpc i915 i2c_algo_bit drm_kms_helper drm firewire_ohci firewire_core crc_itu_t aacraid i2c_core video Mar 5 14:05:26 r1epi kernel: [1404949.416803] CPU: 6 PID: 660 Comm: nfsd Not tainted 3.12.10-300.fc20.x86_64 #1 Mar 5 14:05:26 r1epi kernel: [1404949.416805] Hardware name: System manufacturer System Product Name/P8Z68-V PRO, BIOS 0902 09/19/2011 Mar 5 14:05:26 r1epi kernel: [1404949.416806] 0000000000000009 ffff8800bb4fbce8 ffffffff81667ed5 ffff8800bb4fbd30 Mar 5 14:05:26 r1epi kernel: [1404949.416808] ffff8800bb4fbd20 ffffffff8106903d ffff8801148617f0 ffff8802104dc000 Mar 5 14:05:26 r1epi kernel: [1404949.416810] 0000000000000002 0000000000000070 0000000000000070 ffff8800bb4fbd80 Mar 5 14:05:26 r1epi kernel: [1404949.416812] Call Trace: Mar 5 14:05:26 r1epi kernel: [1404949.416816] [<ffffffff81667ed5>] dump_stack+0x45/0x56 Mar 5 14:05:26 r1epi kernel: [1404949.416820] [<ffffffff8106903d>] warn_slowpath_common+0x7d/0xa0 Mar 5 14:05:26 r1epi kernel: [1404949.416822] [<ffffffff810690ac>] warn_slowpath_fmt+0x4c/0x50 Mar 5 14:05:26 r1epi kernel: [1404949.416823] [<ffffffff8131bb13>] __list_del_entry+0x63/0xd0 Mar 5 14:05:26 r1epi kernel: [1404949.416830] [<ffffffffa0212c21>] lru_put_end+0x21/0x60 [nfsd] Mar 5 14:05:26 r1epi kernel: [1404949.416835] [<ffffffffa02135b5>] nfsd_cache_update+0x85/0x150 [nfsd] Mar 5 14:05:26 r1epi kernel: [1404949.416839] [<ffffffffa0207e02>] nfsd_dispatch+0x192/0x200 [nfsd] Mar 5 14:05:26 r1epi kernel: [1404949.416848] [<ffffffffa01a5dcd>] svc_process_common+0x46d/0x6d0 [sunrpc] Mar 5 14:05:26 r1epi kernel: [1404949.416854] [<ffffffffa01a6137>] svc_process+0x107/0x170 [sunrpc] Mar 5 14:05:26 r1epi kernel: [1404949.416857] [<ffffffffa020771f>] nfsd+0xbf/0x130 [nfsd] Mar 5 14:05:26 r1epi kernel: [1404949.416861] [<ffffffffa0207660>] ? nfsd_destroy+0x80/0x80 [nfsd] Mar 5 14:05:26 r1epi kernel: [1404949.416864] [<ffffffff8108af30>] kthread+0xc0/0xd0 Mar 5 14:05:26 r1epi kernel: [1404949.416866] [<ffffffff8108ae70>] ? insert_kthread_work+0x40/0x40 Mar 5 14:05:26 r1epi kernel: [1404949.416868] [<ffffffff81676dfc>] ret_from_fork+0x7c/0xb0 Mar 5 14:05:26 r1epi kernel: [1404949.416870] [<ffffffff8108ae70>] ? insert_kthread_work+0x40/0x40 Mar 5 14:05:26 r1epi kernel: [1404949.416871] ---[ end trace 03cc56d1eb000da2 ]---
note that I had 'yum -y update' before this happened, I had _not_ rebooted yet. This is a NFS server which is heavily loaded.
*********** 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 3.14.4-200.fc20. Please test this kernel update (or newer) 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 is being closed with INSUFFICIENT_DATA as there has not been a response in 2 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.