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[Bug 1550755] Re: Reliably crash kernel 4.4.0.8-generic by reinstalling all packages and waiting for bind9

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** Changed in: linux (Ubuntu Xenial)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1550755

Title:
  Reliably crash kernel 4.4.0.8-generic by reinstalling all packages and
  waiting for bind9

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released

Bug description:
  Hiya

  I periodically do a full reinstall of all packages just to see what
  breaks. Today it's the kernel :) Oddly I have reproduced this on
  several machines. Simply fire up aptitude, go to "Installed" packages,
  hit Shift-L to reinstall, then g and g again to kick it off. When I
  get to bind9 I reliably see this:

  Feb 27 17:15:18 maas named[35942]: exiting
  Feb 27 17:15:18 maas named[35942]: ../../../lib/isc/mem.c:1229: REQUIRE(ctx->references == 1) failed
  Feb 27 17:15:19 maas kernel: [ 1422.530027] ------------[ cut here ]------------
  Feb 27 17:15:19 maas kernel: [ 1422.535184] kernel BUG at /build/linux-WmE1Ft/linux-4.4.0/kernel/cred.c:431!
  Feb 27 17:15:19 maas kernel: [ 1422.543052] invalid opcode: 0000 [#1] SMP 
  Feb 27 17:15:19 maas kernel: [ 1422.547637] Modules linked in: ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi bonding nls_iso8859_1 ipmi_ssif ipmi_devintf intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel dcdbas kvm irqbypass joydev input_leds sb_edac mei_me edac_core mei shpchp lpc_ich ipmi_si ipmi_msghandler 8250_fintek acpi_power_meter mac_hid autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath linear uas hid_generic ixgbe usb_storage usbhid bnx2x hid dca vxlan crct10dif_pclmul tg3 ip6_udp_tunnel crc32_pclmul udp_tunnel aesni_intel aes_x86_64 lrw ptp gf128mul glue_helper ablk_helper cryptd pps_core megaraid_sas mdio libcrc32c wmi fjes
  Feb 27 17:15:19 maas kernel: [ 1422.647254] CPU: 19 PID: 35942 Comm: named Not tainted 4.4.0-8-generic #23-Ubuntu
  Feb 27 17:15:19 maas kernel: [ 1422.655605] Hardware name: Dell Inc. PowerEdge R430/03XKDV, BIOS 1.5.4 10/05/2015
  Feb 27 17:15:19 maas kernel: [ 1422.663956] task: ffff88102afa0dc0 ti: ffff881026fe4000 task.ti: ffff881026fe4000
  Feb 27 17:15:19 maas kernel: [ 1422.672307] RIP: 0010:[<ffffffff8109fcbd>]  [<ffffffff8109fcbd>] commit_creds+0x20d/0x250
  Feb 27 17:15:19 maas kernel: [ 1422.681446] RSP: 0018:ffff881026fe7940  EFLAGS: 00010206
  Feb 27 17:15:19 maas kernel: [ 1422.687373] RAX: 0000000000000000 RBX: ffff881029224c30 RCX: ffff881032d15c00
  Feb 27 17:15:19 maas kernel: [ 1422.695337] RDX: 0000000000000009 RSI: 0000000000000001 RDI: ffff88102aae0180
  Feb 27 17:15:19 maas kernel: [ 1422.703299] RBP: ffff881026fe7960 R08: ffff88103d6d9f60 R09: ffff88103cc07c00
  Feb 27 17:15:19 maas kernel: [ 1422.711260] R10: ffffea00407be000 R11: 0000000000000000 R12: ffff8810349b0fc0
  Feb 27 17:15:19 maas kernel: [ 1422.719222] R13: ffff88102afa0dc0 R14: 00007ffffffff000 R15: ffff881026fe7ad0
  Feb 27 17:15:19 maas kernel: [ 1422.727186] FS:  00007fa6a87bb740(0000) GS:ffff88103d6c0000(0000) knlGS:0000000000000000
  Feb 27 17:15:19 maas kernel: [ 1422.736215] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Feb 27 17:15:19 maas kernel: [ 1422.742625] CR2: 00007ff0731e1000 CR3: 000000101af82000 CR4: 00000000001406e0
  Feb 27 17:15:19 maas kernel: [ 1422.750586] Stack:
  Feb 27 17:15:19 maas kernel: [ 1422.752826]  000000008bfc6f2a ffff881029224c30 ffff8810297d1a20 ffff88102aae0180
  Feb 27 17:15:19 maas kernel: [ 1422.761113]  ffff881026fe7988 ffffffff8137111b ffff881029224c30 ffff880034ae8800
  Feb 27 17:15:19 maas kernel: [ 1422.769403]  0000000000000000 ffff881026fe79b0 ffffffff8137b212 ffffffff811e6fea
  Feb 27 17:15:19 maas kernel: [ 1422.777691] Call Trace:
  Feb 27 17:15:19 maas kernel: [ 1422.780420]  [<ffffffff8137111b>] aa_replace_current_label+0xeb/0x140
  Feb 27 17:15:19 maas kernel: [ 1422.787609]  [<ffffffff8137b212>] apparmor_file_alloc_security+0xc2/0x160
  Feb 27 17:15:19 maas kernel: [ 1422.795185]  [<ffffffff811e6fea>] ? kmem_cache_alloc+0x1ba/0x1e0
  Feb 27 17:15:19 maas kernel: [ 1422.801889]  [<ffffffff81337eb3>] security_file_alloc+0x33/0x50
  Feb 27 17:15:19 maas kernel: [ 1422.808495]  [<ffffffff81209d5a>] get_empty_filp+0x9a/0x1c0
  Feb 27 17:15:19 maas kernel: [ 1422.814714]  [<ffffffff812163ed>] path_openat+0x3d/0x1280
  Feb 27 17:15:19 maas kernel: [ 1422.820738]  [<ffffffff810c0a84>] ? __wake_up+0x44/0x50
  Feb 27 17:15:19 maas kernel: [ 1422.826569]  [<ffffffff8128f08b>] ? ext4_free_inode+0x22b/0x630
  Feb 27 17:15:19 maas kernel: [ 1422.833174]  [<ffffffff81218801>] do_filp_open+0x91/0x100
  Feb 27 17:15:19 maas kernel: [ 1422.839198]  [<ffffffff810e4ec7>] ? call_rcu_sched+0x17/0x20
  Feb 27 17:15:19 maas kernel: [ 1422.845515]  [<ffffffff812b3f1b>] ? ext4_destroy_inode+0x3b/0xa0
  Feb 27 17:15:19 maas kernel: [ 1422.852218]  [<ffffffff8124a7bc>] ? __fsnotify_inode_delete+0x1c/0x20
  Feb 27 17:15:19 maas kernel: [ 1422.859406]  [<ffffffff812235d8>] ? destroy_inode+0x38/0x60
  Feb 27 17:15:19 maas kernel: [ 1422.865622]  [<ffffffff8122372d>] ? evict+0x12d/0x190
  Feb 27 17:15:19 maas kernel: [ 1422.871257]  [<ffffffff812177a4>] ? putname+0x54/0x60
  Feb 27 17:15:19 maas kernel: [ 1422.876892]  [<ffffffff81217664>] ? getname_kernel+0x34/0x120
  Feb 27 17:15:19 maas kernel: [ 1422.883302]  [<ffffffff81207237>] file_open_name+0xf7/0x150
  Feb 27 17:15:19 maas kernel: [ 1422.889520]  [<ffffffff812072c3>] filp_open+0x33/0x60
  Feb 27 17:15:19 maas kernel: [ 1422.895156]  [<ffffffff8126a8a1>] do_coredump+0x4c1/0xe90
  Feb 27 17:15:19 maas kernel: [ 1422.901178]  [<ffffffff81371851>] ? profile_signal_perm.part.4+0xb1/0x110
  Feb 27 17:15:19 maas kernel: [ 1422.908754]  [<ffffffff8108dec8>] get_signal+0x268/0x600
  Feb 27 17:15:19 maas kernel: [ 1422.914681]  [<ffffffff81016517>] do_signal+0x37/0x6f0
  Feb 27 17:15:19 maas kernel: [ 1422.920413]  [<ffffffff8108ccec>] ? do_send_sig_info+0x6c/0xa0
  Feb 27 17:15:19 maas kernel: [ 1422.926921]  [<ffffffff8100320c>] exit_to_usermode_loop+0x8c/0xd0
  Feb 27 17:15:19 maas kernel: [ 1422.933719]  [<ffffffff81003c2e>] syscall_return_slowpath+0x4e/0x60
  Feb 27 17:15:19 maas kernel: [ 1422.940714]  [<ffffffff81813fd0>] int_ret_from_sys_call+0x25/0x8f
  Feb 27 17:15:19 maas kernel: [ 1422.947512] Code: ca 48 81 fa 20 25 e4 81 0f 84 6c fe ff ff 48 8b 8a c8 00 00 00 48 39 ce 75 e4 3b 82 d4 00 00 00 0f 84 9a fe ff ff 48 89 f2 eb d6 <0f> 0b 0f 0b e8 2a ed fd ff 49 8b 44 24 30 48 89 c2 f7 d0 48 c1 
  Feb 27 17:15:19 maas kernel: [ 1422.969091] RIP  [<ffffffff8109fcbd>] commit_creds+0x20d/0x250
  Feb 27 17:15:19 maas kernel: [ 1422.975608]  RSP <ffff881026fe7940>
  Feb 27 17:15:19 maas kernel: [ 1422.979523] ---[ end trace 9e5c57f08d29feb8 ]---
  --- 
  AlsaDevices:
   total 0
   crw-rw----+ 1 root audio 116,  1 Feb 27 17:37 seq
   crw-rw----+ 1 root audio 116, 33 Feb 27 17:37 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/dsp3', '/dev/dsp2', '/dev/dsp1', '/dev/dsp', '/dev/snd/seq', '/dev/snd/timer', '/dev/sequencer'] failed with exit code 1:
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=e29b05de-72f8-4cfd-9272-b6087dd6aaf6
  MachineType: Dell Inc. PowerEdge R430
  Package: linux (not installed)
  PciMultimedia:
   
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic.efi.signed root=UUID=52010861-42ec-4375-b2f7-a3fd86f5a1cb ro console=tty0 console=ttyS0,115200n8 nomdmonddf nomdmonisw
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware                           1.156
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  xenial
  Uname: Linux 4.4.0-8-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  _MarkForUpload: True
  dmi.bios.date: 10/05/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.5.4
  dmi.board.name: 03XKDV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 23
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.5.4:bd10/05/2015:svnDellInc.:pnPowerEdgeR430:pvr:rvnDellInc.:rn03XKDV:rvrA01:cvnDellInc.:ct23:cvr:
  dmi.product.name: PowerEdge R430
  dmi.sys.vendor: Dell Inc.

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References

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