Hi all, I started my testing with trinity fuzzer, I found a bug something like the below one in the dmesg .
Please pardon me if its a false alarm. command: ./trinity as user in a lenovo box, how it came: ran the above command for more than 3 mins, mean while do apt-get and vim. kernel: 3.5-rc6 with git head at fdb1335a82e. (from Torvald's branch) dmesg: [43610.535421] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 [43610.535458] IP: [<ffffffff81040999>] __ticket_spin_lock+0x9/0x30 [43610.535482] PGD a5f5e067 PUD d3eb3067 PMD 0 [43610.535501] Oops: 0002 [#1] SMP [43610.535516] CPU 0 [43610.535524] Modules linked in: l2tp_ppp l2tp_core ipt_ULOG x_tables dn_rtmsg can_bcm nfnetlink xfrm_user can_raw hidp af_alg caif_socket caif phonet af_rxrpc can llc2 pppoe pppox irda crc_ccitt af_key xfrm_algo atm appletalk ipx p8022 psnap llc p8023 pl2303 usbserial hid_generic usbhid hid usb_storage uas cdc_acm rfcomm bnep parport_pc ppdev snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec thinkpad_acpi snd_hwdep snd_pcm snd_seq_midi arc4 snd_rawmidi snd_seq_midi_event binfmt_misc snd_seq joydev snd_timer snd_seq_device rtl8192ce rtl8192c_common rtlwifi mac80211 coretemp i915 snd uvcvideo videobuf2_core videodev kvm_intel btusb kvm ghash_clmulni_intel cryptd drm_kms_helper drm soundcore bluetooth cfg80211 videobuf2_vmalloc snd_page_alloc mac_hid i2c_algo_bit psmouse serio_raw microcode lpc_ich videobuf2_memops mei wmi tpm_tis video nvram lp parport firewire_ohci sdhci_pci sdhci firewire_core crc_itu_t e1000e [43610.535901] [43610.535905] Pid: 28712, comm: trinity-child0 Tainted: G W 3.5.0-rc6+ #2 LENOVO 4177CTO/4177CTO [43610.535938] RIP: 0010:[<ffffffff81040999>] [<ffffffff81040999>] __ticket_spin_lock+0x9/0x30 [43610.535965] RSP: 0018:ffff8800346d1bd8 EFLAGS: 00010282 [43610.535982] RAX: 0000000000010000 RBX: 0000000000000010 RCX: 0000000000000001 [43610.536004] RDX: ffff8800346d1cc8 RSI: ffff8800346d1d48 RDI: 0000000000000010 [43610.536025] RBP: ffff8800346d1bd8 R08: ffff8800346d0000 R09: 0000000000000800 [43610.536046] R10: 0000000000000001 R11: 0000000000000000 R12: ffff8800346d1d48 [43610.536067] R13: ffff880114c216f0 R14: ffff8800346d1cc8 R15: ffff8800346d1d48 [43610.536089] FS: 00007f65d88f1700(0000) GS:ffff88011e200000(0000) knlGS:0000000000000000 [43610.536112] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [43610.536130] CR2: 0000000000000010 CR3: 000000003ad66000 CR4: 00000000000407f0 [43610.536151] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [43610.536172] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [43610.536194] Process trinity-child0 (pid: 28712, threadinfo ffff8800346d0000, task ffff880114c216f0) [43610.536220] Stack: [43610.536228] ffff8800346d1be8 ffffffff81661efe ffff8800346d1c28 ffffffff810af084 [43610.536255] 0000000050015f72 0000000000000000 0000000000000000 ffff8800346d1cc8 [43610.536282] 0000000000000010 ffff8800346d1f40 ffff8800346d1de8 ffffffff810ac696 [43610.536308] Call Trace: [43610.536320] [<ffffffff81661efe>] _raw_spin_lock+0xe/0x20 [43610.536339] [<ffffffff810af084>] rt_mutex_finish_proxy_lock+0x34/0xd0 [43610.536360] [<ffffffff810ac696>] futex_wait_requeue_pi+0x296/0x3f0 [43610.536380] [<ffffffff81121eb9>] ? generic_file_aio_write+0x99/0xe0 [43610.536402] [<ffffffff8107a920>] ? update_rmtp+0x70/0x70 [43610.536420] [<ffffffff8107b5a4>] ? hrtimer_start_range_ns+0x14/0x20 [43610.536441] [<ffffffff810ad899>] do_futex+0x339/0xb00 [43610.536458] [<ffffffff8107b30b>] ? __hrtimer_start_range_ns+0x16b/0x3d0 [43610.536480] [<ffffffff8107adc0>] ? lock_hrtimer_base.isra.24+0x30/0x60 [43610.536502] [<ffffffff8107b588>] ? hrtimer_start+0x18/0x20 [43610.536521] [<ffffffff81059944>] ? do_setitimer+0x194/0x2c0 [43610.536539] [<ffffffff810ae16a>] sys_futex+0x10a/0x1a0 [43610.537495] [<ffffffff8166a2e9>] system_call_fastpath+0x16/0x1b [43610.538422] Code: 00 00 48 c7 c1 a1 07 04 81 48 c7 c2 9e 07 04 81 e9 dd fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 55 b8 00 00 01 00 48 89 e5 <f0> 0f c1 07 89 c2 c1 ea 10 66 39 c2 74 13 66 0f 1f 84 00 00 00 [43610.540380] RIP [<ffffffff81040999>] __ticket_spin_lock+0x9/0x30 [43610.541417] RSP <ffff8800346d1bd8> [43610.542427] CR2: 0000000000000010 [43610.560072] ---[ end trace 035e6ea48214012f ]--- [43626.265472] irda_poll(), POLLHUP Thanks, Devendra. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
