On Mon, 19 May 2014, Vince Weaver wrote: > The fuzzing also turned up a few other issues, and in the end after 2 days > it locked up the machine so hard that it also took out the ethernet switch > due to some sort of packet trasmit storm, which is a failure mode I > have to admit I haven't encountered before.
Not only did it take out the ethernet switch, but it corrupted the filesystem too :( Though I guess I should be surprised this doesn't happen more considering how often I have to hard-reboot the machines. [ 3835.636255] EXT4-fs error (device sda4): ext4_mb_generate_buddy:756: group 1681, 14687 clusters in bitmap, 14680 in gd; block bitmap corrupt. [ 3835.649921] Aborting journal on device sda4-8. [ 3835.654895] EXT4-fs (sda4): Remounting filesystem read-only [ 3835.661053] ------------[ cut here ]------------ [ 3835.666163] WARNING: CPU: 0 PID: 2265 at fs/ext4/ext4_jbd2.c:259 __ext4_handle_dirty_metadata+0x1b2/0x200() [ 3835.676785] Modules linked in: fuse x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_hdmi kvm iTCO_wdt snd_hda_codec_realtek snd_hda_codec_generic iTCO_vendor_support i915 crc32_pclmul snd_hda_intel ghash_clmulni_intel snd_hda_controller wmi evdev drm_kms_helper ppdev aesni_intel mei_me mei drm snd_hda_codec aes_x86_64 lrw gf128mul glue_helper snd_hwdep ablk_helper psmouse snd_pcm snd_timer tpm_tis i2c_algo_bit snd tpm pcspkr serio_raw processor battery i2c_i801 i2c_core lpc_ich parport_pc parport cryptd soundcore button video mfd_core sd_mod sr_mod crc_t10dif crct10dif_generic cdrom ehci_pci ahci libahci xhci_hcd e1000e ehci_hcd crct10dif_pclmul libata crct10dif_common ptp crc32c_intel usbcore scsi_mod pps_core usb_common thermal fan thermal_sys [ 3835.751220] CPU: 0 PID: 2265 Comm: git Not tainted 3.15.0-rc5+ #108 [ 3835.757911] Hardware name: LENOVO 10AM000AUS/SHARKBAY, BIOS FBKT72AUS 01/26/2014 [ 3835.765842] 0000000000000009 ffff8801179fb908 ffffffff8164a8f0 0000000000000000 [ 3835.773882] ffff8801179fb940 ffffffff810646ad ffff880036aa7888 0000000000000000 [ 3835.781927] ffff880036bf1cc8 ffffffff81830e20 00000000000012f3 ffff8801179fb950 [ 3835.789913] Call Trace: [ 3835.792537] [<ffffffff8164a8f0>] dump_stack+0x45/0x56 [ 3835.798028] [<ffffffff810646ad>] warn_slowpath_common+0x7d/0xa0 [ 3835.804381] [<ffffffff8106478a>] warn_slowpath_null+0x1a/0x20 [ 3835.810577] [<ffffffff81269662>] __ext4_handle_dirty_metadata+0x1b2/0x200 [ 3835.817882] [<ffffffff81652017>] ? _raw_spin_unlock+0x27/0x30 [ 3835.824080] [<ffffffff81271ef6>] ext4_free_blocks+0x646/0xbf0 [ 3835.830334] [<ffffffff81264be9>] ext4_ext_remove_space+0x7d9/0x1050 [ 3835.837054] [<ffffffff81267580>] ext4_ext_truncate+0xb0/0xe0 [ 3835.843223] [<ffffffff81240589>] ext4_truncate+0x379/0x3c0 [ 3835.849076] [<ffffffff81152be9>] ? truncate_pagecache+0x59/0x60 [ 3835.855547] [<ffffffff81241d1f>] ext4_setattr+0x2ef/0x730 [ 3835.861437] [<ffffffff811d2961>] notify_change+0x241/0x390 [ 3835.867342] [<ffffffff811b315f>] do_truncate+0x6f/0xa0 [ 3835.873046] [<ffffffff811b2bab>] ? do_dentry_open+0x22b/0x2c0 [ 3835.879284] [<ffffffff811c4edf>] do_last+0xa7f/0x12f0 [ 3835.884863] [<ffffffff811c1241>] ? link_path_walk+0x71/0x880 [ 3835.891080] [<ffffffff811c57c8>] ? path_openat+0x78/0x670 [ 3835.897030] [<ffffffff811c580b>] path_openat+0xbb/0x670 [ 3835.902656] [<ffffffff810b0d4d>] ? __lock_acquire.isra.29+0x3bd/0xb90 [ 3835.909714] [<ffffffff811c65da>] do_filp_open+0x3a/0x90 [ 3835.915433] [<ffffffff81652017>] ? _raw_spin_unlock+0x27/0x30 [ 3835.921711] [<ffffffff811d3c97>] ? __alloc_fd+0xa7/0x130 [ 3835.927522] [<ffffffff811b4698>] do_sys_open+0x128/0x220 [ 3835.933351] [<ffffffff811b47ae>] SyS_open+0x1e/0x20 [ 3835.938695] [<ffffffff8165b5ed>] system_call_fastpath+0x1a/0x1f [ 3835.945196] ---[ end trace abc274a1f233508e ]--- [ 3835.950155] EXT4: jbd2_journal_dirty_metadata failed: handle type 5 started at line 3740, credits 16/16, errcode -30 [ 3835.961325] EXT4: jbd2_journal_dirty_metadata failed: handle type 5 started at line 3740, credits 16/16, errcode -30<2>[ 3835.972625] EXT4-fs error (device sda4) in ext4_free_blocks:4867: Journal has aborted [ 3835.981224] EXT4-fs error (device sda4) in ext4_reserve_inode_write:4877: Journal has aborted [ 3836.011139] EXT4-fs error (device sda4) in ext4_reserve_inode_write:4877: Journal has aborted [ 3836.020512] EXT4-fs error (device sda4) in ext4_ext_remove_space:3018: Journal has aborted [ 3836.036079] EXT4-fs error (device sda4) in ext4_ext_truncate:4666: Journal has aborted [ 3836.044701] EXT4-fs error (device sda4) in ext4_reserve_inode_write:4877: Journal has aborted [ 3836.053985] EXT4-fs error (device sda4) in ext4_orphan_del:2684: Journal has aborted [ 3836.069403] EXT4-fs error (device sda4) in ext4_reserve_inode_write:4877: Journal has aborted -- 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/
