Bug#880655: SMB mount/umount between 2 docker containers causes kernel Oops
On Sun, Nov 05, 2017 at 12:01:11AM +, Ben Hutchings wrote: > Control: reassign -1 src:linux 4.9.51-1 > > On Fri, 2017-11-03 at 12:08 +0100, Fabian Holler wrote: > > Package: linux-image-4.9.0-4-amd64 > > Version: 4.9.51-1 > > > > Running Samba in one docker container and mounting/umounting a SMB share of > > it > > in a second docker container causes a kernel Oops. > > The machine did not crash with linux-image-4.9.0-4-amd64=4.9.51-1. > > That's the same version you're reporting as failing. Which version is > working? Yes, the Oops happens with linux-image-4.9.0-4-amd64=4.9.51-1. I meant the Oops happened with that kernel but after the Oops the machine continued to run. I tried it again again and the machine crashed on the 2. try.
Bug#880655: SMB mount/umount between 2 docker containers causes kernel Oops
Control: reassign -1 src:linux 4.9.51-1 On Fri, 2017-11-03 at 12:08 +0100, Fabian Holler wrote: > Package: linux-image-4.9.0-4-amd64 > Version: 4.9.51-1 > > Running Samba in one docker container and mounting/umounting a SMB share of it > in a second docker container causes a kernel Oops. > The machine did not crash with linux-image-4.9.0-4-amd64=4.9.51-1. That's the same version you're reporting as failing. Which version is working? Ben. > The bug can be reproduced by https://github.com/fho/docker-samba-loop. > > I was also able to reproduce a kernel Oops with the docker-samba-loop scripts > in multiple Ubuntu kernels (incl. machine crashes). > The trace looks different on linux-image-4.9.0-4-amd64. It might be a > different issue. > Ubuntu bug report: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637 > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 might be related, > it's about the "unregister_netdevice: waiting for lo to become free." > messages. > > The kernel log is attached. -- Ben Hutchings I'm not a reverse psychological virus. Please don't copy me into your sig. signature.asc Description: This is a digitally signed message part
Bug#880655: SMB mount/umount between 2 docker containers causes kernel Oops
Package: linux-image-4.9.0-4-amd64 Version: 4.9.51-1 Running Samba in one docker container and mounting/umounting a SMB share of it in a second docker container causes a kernel Oops. The machine did not crash with linux-image-4.9.0-4-amd64=4.9.51-1. The bug can be reproduced by https://github.com/fho/docker-samba-loop. I was also able to reproduce a kernel Oops with the docker-samba-loop scripts in multiple Ubuntu kernels (incl. machine crashes). The trace looks different on linux-image-4.9.0-4-amd64. It might be a different issue. Ubuntu bug report: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729637 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 might be related, it's about the "unregister_netdevice: waiting for lo to become free." messages. The kernel log is attached. [ 1085.345239] unregister_netdevice: waiting for lo to become free. Usage count = 1 [ 1095.425242] unregister_netdevice: waiting for lo to become free. Usage count = 1 [ 1105.505246] unregister_netdevice: waiting for lo to become free. Usage count = 1 [ 1115.585269] unregister_netdevice: waiting for lo to become free. Usage count = 1 [ 1124.835985] docker0: port 2(veth966a0a1) entered disabled state [ 1124.846673] device veth966a0a1 left promiscuous mode [ 1124.852945] docker0: port 2(veth966a0a1) entered disabled state [ 1124.893454] BUG: unable to handle kernel paging request at fee0 [ 1124.900946] IP: [] sk_filter_uncharge+0x5/0x40 [ 1124.907177] PGD 12995b067 [ 1124.909816] PUD 0 [ 1124.913539] Oops: [#1] SMP [ 1124.916816] Modules linked in: nls_utf8 cifs sha256_ssse3 cmac md4 des_generic arc4 dns_resolver fscache xt_nat xt_tcpudp veth ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc overlay sb_edac edac_core crct10dif_pclmul crc32_pclmul ppdev ghash_clmulni_intel intel_rapl_perf sg evdev parport_pc pvpanic parport serio_raw button ip_tables x_tables autofs4 ext4 crc16 jbd2 crc32c_generic fscrypto ecb mbcache sd_mod crc32c_intel virtio_scsi scsi_mod virtio_net aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd psmouse virtio_pci virtio_ring virtio i2c_piix4 [ 1124.991747] CPU: 0 PID: 10546 Comm: dockerd Not tainted 4.9.0-4-amd64 #1 Debian 4.9.51-1 [ 1124.44] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1125.009273] task: 899b769f2040 task.stack: a8ed0101 [ 1125.015302] RIP: 0010:[] [] sk_filter_uncharge+0x5/0x40 [ 1125.023967] RSP: 0018:a8ed01013de8 EFLAGS: 00010202 [ 1125.029386] RAX: RBX: 899c67741aa8 RCX: 0006 [ 1125.036631] RDX: RSI: fec8 RDI: 899c67741800 [ 1125.043941] RBP: 899c67741800 R08: R09: [ 1125.051181] R10: 899c676b6810 R11: 899b769f2040 R12: 899c677418a8 [ 1125.058436] R13: 0001 R14: 899c67741880 R15: 899c6a80d400 [ 1125.065679] FS: 7fe5aa0c1700() GS:899c6fc0() knlGS: [ 1125.073880] CS: 0010 DS: ES: CR0: 80050033 [ 1125.079740] CR2: fee0 CR3: 000126d0e000 CR4: 000406f0 [ 1125.086980] DR0: DR1: DR2: [ 1125.094232] DR3: DR6: fffe0ff0 DR7: 0400 [ 1125.101472] Stack: [ 1125.103589] 8eae9555 899c67741800 a8ed01013e60 899c677418a8 [ 1125.111545] 8eba849a 899c6a80d740 899c677418a8 899c66ece6e0 [ 1125.119778] 899beaaaee40 6cd836548a884acd 899c4c955040 899c4c955070 [ 1125.127787] Call Trace: [ 1125.130353] [] ? __sk_destruct+0x35/0x190 [ 1125.136126] [] ? unix_release_sock+0x1ea/0x2d0 [ 1125.142329] [] ? unix_release+0x19/0x30 [ 1125.147933] [] ? sock_release+0x1a/0x70 [ 1125.153523] [] ? sock_close+0xe/0x20 [ 1125.158868] [] ? __fput+0xd5/0x220 [ 1125.164030] [] ? task_work_run+0x79/0xa0 [ 1125.169719] [] ? exit_to_usermode_loop+0xa4/0xb0 [ 1125.176095] [] ? syscall_return_slowpath+0x54/0x60 [ 1125.182650] [] ? system_call_fast_compare_end+0x99/0x9b [ 1125.189633] Code: ea ff ff ff c3 4c 89 e7 e8 49 d2 c3 ff 48 c7 c0 f4 ff ff ff e9 49 ff ff ff 48 c7 c0 f4 ff ff ff e9 3d ff ff ff 90 66 66 66 66 90 <48> 8b 46 18 8b 40 04 48 8d 04 c5 28 00 00 00 3e 29 87 24 01 00 [ 1125.216264] RIP [] sk_filter_uncharge+0x5/0x40 [ 1125.222598] RSP [ 1125.226200] CR2: fee0 [ 1125.230140] ---[ end trace 25825482a4e502a0 ]---
