Description of problem: Version-Release number of selected component (if applicable): How reproducible: On uname -a Linux comp 3.4.6-2.fc17.x86_64 #1 SMP Thu Jul 19 22:54:16 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux I got this message: [2757902.689797] systemd[1]: Got D-Bus request: org.freedesktop.DBus.Local.Disconnected() on /org/freedesktop/DBus/Local [2759794.010668] ------------[ cut here ]------------ [2759794.010677] WARNING: at lib/list_debug.c:55 __list_del_entry+0xa1/0xd0() [2759794.010679] Hardware name: System Product Name [2759794.010681] list_del corruption. prev->next should be ffff88010b985ab8, but was fffe88010b985ab8 [2759794.010683] Modules linked in: ah6 ah4 esp6 xfrm4_mode_beet xfrm4_tunnel xfrm4_mode_transport xfrm6_mode_transport xfrm6_mode_ro xfrm6_mode_beet ipcomp ipcomp6 xfrm6_tunnel tunnel6 xfrm_ipcomp af_key esp4 xfrm4_mode_tunnel xfrm6_mode_tunnel fuse tun authenc lockd sunrpc rmd160 crypto_null camellia_generic camellia_x86_64 lzo cast6 cast5 deflate zlib_deflate cts gcm ccm serpent_sse2_x86_64 serpent_generic blowfish_generic blowfish_x86_64 blowfish_common twofish_generic twofish_x86_64_3way xts lrw gf128mul twofish_x86_64 twofish_common xcbc sha256_generic sha512_generic des_generic tunnel4 nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE rfcomm ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables iptable_nat nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack bnep tpm_bios snd_hda_codec_hdmi snd_hda_codec_realtek btusb bluetooth raid1 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc i2c_i801 coretemp r8169 mii serio_raw snd_timer iTCO_wdt snd soundcore microcode eeepc_wmi asus_wmi sparse_keymap rfkill iTCO_vendor_support uinput ata_generic pata_acpi crc32c_intel ghash_clmulni_intel pata_jmicron usb_storage mxm_wmi wmi i915 video i2c_algo_bit drm_kms_helper drm i2c_core [last unloaded: tunnel6] [2759794.010755] Pid: 70, comm: kswapd0 Not tainted 3.4.6-2.fc17.x86_64 #1 [2759794.010757] Call Trace: [2759794.010764] [<ffffffff81056ecf>] warn_slowpath_common+0x7f/0xc0 [2759794.010767] [<ffffffff81056fc6>] warn_slowpath_fmt+0x46/0x50 [2759794.010769] [<ffffffff812d4201>] __list_del_entry+0xa1/0xd0 [2759794.010774] [<ffffffff8126e3ba>] selinux_inode_free_security+0x4a/0x80 [2759794.010778] [<ffffffff81269c76>] security_inode_free+0x16/0x20 [2759794.010782] [<ffffffff8119a4b6>] __destroy_inode+0x26/0xf0 [2759794.010784] [<ffffffff8119a5a6>] destroy_inode+0x26/0x70 [2759794.010787] [<ffffffff8119a6f1>] evict+0x101/0x190 [2759794.010789] [<ffffffff8119ac8e>] dispose_list+0x3e/0x60 [2759794.010792] [<ffffffff8119b501>] prune_icache_sb+0x161/0x300 [2759794.010797] [<ffffffff8118471b>] prune_super+0x15b/0x1b0 [2759794.010800] [<ffffffff811328f9>] shrink_slab+0x149/0x2d0 [2759794.010803] [<ffffffff8113626f>] balance_pgdat+0x58f/0x7a0 [2759794.010806] [<ffffffff811365ea>] kswapd+0x16a/0x3b0 [2759794.010809] [<ffffffff81078e00>] ? wake_up_bit+0x40/0x40 [2759794.010812] [<ffffffff81136480>] ? balance_pgdat+0x7a0/0x7a0 [2759794.010814] [<ffffffff810788c3>] kthread+0x93/0xa0 [2759794.010819] [<ffffffff815fdfe4>] kernel_thread_helper+0x4/0x10 [2759794.010822] [<ffffffff81078830>] ? flush_kthread_worker+0x80/0x80 [2759794.010825] [<ffffffff815fdfe0>] ? gs_change+0x13/0x13 [2759794.010827] ---[ end trace 1e97cdf963349bc6 ]--- [2786595.672964] EXT4-fs (sdh1): warning: maximal mount count reached, running e2fsck is recommended
You had a single bit flip in memory. That can often be a sign of a memory module failing. I would suggest running memtest86+ overnight and seeing if you get any errors.
I understand this does not prove anything, but after 32 hours of continuous memtestx86 v4.20 no single memory error found
Are you still having issues with this with 3.8.2 in updates-testing?
I did see this issue only once. No repeat. 1 week of continuous memtestx86 v4.20 did show nothing. I understand this 1 bit flip-flop can be anything from kernel bug to a cosmic gamma quant. The memory/motherboard has no ECC memory check.
OK, we'll close this out for now. If you see it again, please reopen.