Description of problem: system was idle Additional info: libreport version: 2.0.18 abrt_version: 2.0.18 cmdline: BOOT_IMAGE=/boot/vmlinuz-3.6.6-1.fc17.x86_64 root=UUID=5f53ecb6-a4da-4a15-b5f3-1236e767d775 ro rd.md=0 rd.lvm=0 rd.dm=0 SYSFONT=True KEYTABLE=us rd.luks=0 LANG=en_US.UTF-8 rhgb quiet kernel: 3.6.6-1.fc17.x86_64 backtrace: :kernel BUG at mm/shmem.c:657! :invalid opcode: 0000 [#1] SMP :Modules linked in: udf hid_logitech_dj des_generic md4 cifs dns_resolver fscache nls_utf8 lockd sunrpc bnep bluetooth rfkill ip6t_REJECT nf_conntrack_ipv6 nf_conntrack_netbios_ns nf_conntrack_broadcast nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 ip6table_filter xt_state nf_conntrack ip6_tables fuse snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_seq snd_seq_device snd_hwdep snd_pcm snd_page_alloc snd_timer iTCO_wdt snd soundcore iTCO_vendor_support serio_raw atl1 mii lpc_ich mfd_core i2c_i801 asus_atk0110 coretemp kvm_intel kvm microcode uinput ata_generic pata_acpi firewire_ohci firewire_core crc_itu_t usb_storage pata_jmicron nouveau mxm_wmi wmi video i2c_algo_bit drm_kms_helper ttm drm i2c_core :CPU 1 :Pid: 1017, comm: kwin Not tainted 3.6.6-1.fc17.x86_64 #1 System manufacturer P5E-VM HDMI/P5E-VM HDMI :RIP: 0010:[<ffffffff81145792>] [<ffffffff81145792>] shmem_evict_inode+0x112/0x120 :RSP: 0018:ffff88012b94ddb8 EFLAGS: 00010282 :RAX: 0000000050aeab47 RBX: ffff880117a424a8 RCX: 0000000000000018 :RDX: 000000001fea11fd RSI: 0000000005537c1c RDI: ffffffff81f1d500 :RBP: ffff88012b94ddd8 R08: 0000000000000000 R09: 0000000000000000 :R10: 0000000000000000 R11: 0000000000000000 R12: ffff880117a424a8 :R13: ffff880117a424a8 R14: ffff880117a424b8 R15: ffff880139a79220 :FS: 00007fa606014880(0000) GS:ffff88013fc80000(0000) knlGS:0000000000000000 :CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 :CR2: 00007fa5f0021010 CR3: 000000012c2d0000 CR4: 00000000000007e0 :DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 :DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 :Process kwin (pid: 1017, threadinfo ffff88012b94c000, task ffff880134f30000) :Stack: : ffff880117a424b8 ffff880117a425b0 ffffffff81812f80 ffffffff81812f80 : ffff88012b94de08 ffffffff811a8da2 ffff88012b94dde8 ffff880117a424b8 : ffff880117a42540 ffff880139a34000 ffff88012b94de38 ffffffff811a8fa3 :Call Trace: : [<ffffffff811a8da2>] evict+0xa2/0x1a0 : [<ffffffff811a8fa3>] iput+0x103/0x1f0 : [<ffffffff811a50e8>] d_kill+0xd8/0x110 : [<ffffffff811a5782>] dput+0xe2/0x1b0 : [<ffffffff811900d6>] __fput+0x166/0x240 : [<ffffffff811901be>] ____fput+0xe/0x10 : [<ffffffff8107beab>] task_work_run+0x6b/0x90 : [<ffffffff81013921>] do_notify_resume+0x71/0xb0 : [<ffffffff81625be2>] int_signal+0x12/0x17 :Code: c7 80 1c c4 81 e8 8f 5a 4d 00 48 89 df e8 77 80 1a 00 49 89 5e e0 49 89 5e e8 48 c7 c7 80 1c c4 81 e8 13 5a 4d 00 e9 1c ff ff ff <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 :RIP [<ffffffff81145792>] shmem_evict_inode+0x112/0x120 : RSP <ffff88012b94ddb8>
hmm, that's this.. 657 BUG_ON(inode->i_blocks); in shmem_evict_inode. I'm impressed that abrt caught this. usually BUG_ON locks up the machine. Upstream seems to think this is related to a race between page eviction and swapping. No fix in 3.7 as of yet. I'll ping Hugh Dickins, as commit 0f3c42f522dc1ad7e27affc0a4aa8c790bce0a66 is changing this from a BUG_ON to a WARN so we might end up seeing this more often.
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