[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
AppleTalk is disabled on focal s390x 5.4.0-12 kernels so this bug cannot be tripped. Marking this as fixed released even though it's not a direct fix, it does stop the issue. ** Changed in: linux (Ubuntu) Status: Triaged => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: Fix Released Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07 DEBUG| [stdout] [ 3708.084328] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:17 DEBUG| [stdout] [ 3718.134297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:27 DEBUG| [stdout] [ 3728.214335] unregister_netdevi
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
Just to say, I did retry the reproducer test and also re-ran the adt tests to double check that this no longer fails on 5.4.0-12. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: Fix Released Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07 DEBUG| [stdout] [ 3708.084328] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:17 DEBUG| [stdout] [ 3718.134297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:27 DEBUG| [stdout] [ 3728.214335] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:37 DEBUG| [stdout] [ 3738.474354] unregister_netdevice:
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
** Changed in: linux (Ubuntu) Importance: High => Low ** Changed in: linux (Ubuntu) Status: Incomplete => Triaged -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: Triaged Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07 DEBUG| [stdout] [ 3708.084328] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:17 DEBUG| [stdout] [ 3718.134297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:27 DEBUG| [stdout] [ 3728.214335] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:37 DEBUG| [stdout] [ 3738.474354] unregister_netdevice: waiting f
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
See: https://lkml.org/lkml/2019/12/5/476 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: Incomplete Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07 DEBUG| [stdout] [ 3708.084328] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:17 DEBUG| [stdout] [ 3718.134297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:27 DEBUG| [stdout] [ 3728.214335] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:37 DEBUG| [stdout] [ 3738.474354] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:48 DEBUG| [stdout] [ 3748.734396]
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
This goes right back to 4.6.x: .6.7 crash (see below) 4.7.10 crash in xfrm6_dst_ifdown 4.8.17 crash in xfrm6_dst_ifdown 4.12.14 crash (see below) 4.13.16 reports "unregister_netdevice: waiting for eth0 to become free. Usage count = 2" 4.14.157 reports "unregister_netdevice: waiting for eth0 to become free. Usage count = 2"" 4.15.18 .. 5.4 hangs on socket() call 4.6.7: [ 34.457967] BUG: scheduling while atomic: kworker/u8:0/6/0x0200 [ 34.458021] Modules linked in: esp6 xfrm6_mode_transport drbg ansi_cprng seqiv esp4 xfrm4_mode_transport xfrm_user xfrm_algo l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink veth l2tp_core ip6_udp_tunnel udp_tunnel squashfs binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua ppdev kvm_intel kvm irqbypass joydev input_leds snd_hda_codec_generic serio_raw snd_hda_intel snd_hda_codec parport_pc 8250_fintek parport snd_hda_core qemu_fw_cfg snd_hwdep snd_pcm snd_timer mac_hid snd soundcore sch_fq_codel virtio_rng ip_tables x_tables autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel qxl ttm drm_kms_helper syscopyarea sysfillrect aesni_intel sysimgblt [ 34.458086] fb_sys_fops aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_piix4 drm psmouse pata_acpi floppy [ 34.458100] CPU: 1 PID: 6 Comm: kworker/u8:0 Not tainted 4.6.7-040607-generic #201608160432 [ 34.458103] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 34.458131] Workqueue: netns cleanup_net [ 34.458135] 0286 2fa171e7 88007c8e7ab8 813f7594 [ 34.458139] 88007fc96b80 7fff 88007c8e7ac8 810a8f6b [ 34.458143] 88007c8e7b18 8184905b 00ff88007c8e7ae8 8106463e [ 34.458147] Call Trace: [ 34.458161] [] dump_stack+0x63/0x8f [ 34.458166] [] __schedule_bug+0x4b/0x60 [ 34.458185] [] __schedule+0x5eb/0x7a0 [ 34.458191] [] ? kvm_sched_clock_read+0x1e/0x30 [ 34.458195] [] schedule+0x35/0x80 [ 34.458203] [] schedule_timeout+0x1b2/0x270 [ 34.458207] [] ? __schedule+0x304/0x7a0 [ 34.458212] [] wait_for_completion+0xb3/0x140 [ 34.458217] [] ? wake_up_q+0x70/0x70 [ 34.458226] [] __wait_rcu_gp+0xc8/0xf0 [ 34.458231] [] synchronize_sched.part.58+0x38/0x50 [ 34.458235] [] ? call_rcu_bh+0x20/0x20 [ 34.458239] [] ? trace_raw_output_rcu_utilization+0x60/0x60 [ 34.458244] [] synchronize_sched+0x33/0x40 [ 34.458251] [] __l2tp_session_unhash+0xd1/0xe0 [l2tp_core] [ 34.458256] [] l2tp_tunnel_closeall+0x9e/0x140 [l2tp_core] [ 34.458261] [] l2tp_tunnel_delete+0x19/0x70 [l2tp_core] [ 34.458265] [] l2tp_exit_net+0x4b/0x80 [l2tp_core] [ 34.458269] [] ops_exit_list.isra.4+0x38/0x60 [ 34.458273] [] cleanup_net+0x1c4/0x2a0 [ 34.458281] [] process_one_work+0x1fc/0x490 [ 34.458285] [] worker_thread+0x4b/0x500 [ 34.458290] [] ? process_one_work+0x490/0x490 [ 34.458293] [] kthread+0xd8/0xf0 [ 34.458298] [] ret_from_fork+0x22/0x40 [ 34.458302] [] ? kthread_create_on_node+0x1b0/0x1b0 [ 34.514067] [ cut here ] 4.12.14: [ 20.760253] [ cut here ] [ 20.760256] kernel BUG at /home/kernel/COD/linux/net/ipv6/xfrm6_policy.c:265! [ 20.760299] invalid opcode: [#1] SMP [ 20.760320] Modules linked in: appletalk psnap llc esp6 xfrm6_mode_transport esp4 xfrm4_mode_transport xfrm_user xfrm_algo l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink veth l2tp_core ip6_udp_tunnel udp_tunnel binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua joydev ppdev snd_hda_codec_generic kvm_intel kvm irqbypass snd_hda_intel snd_hda_codec snd_hda_core input_leds snd_hwdep serio_raw snd_pcm snd_timer hid_generic snd soundcore parport_pc parport mac_hid qemu_fw_cfg sch_fq_codel virtio_rng ip_tables x_tables autofs4 usbhid hid btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd qxl glue_helper ttm cryptd drm_kms_helper psmouse [ 20.760677] syscopyarea sysfillrect virtio_blk sysimgblt fb_sys_fops drm floppy virtio_net i2c_piix4 pata_acpi [ 20.760731] CPU: 3 PID: 49 Comm: kworker/u8:1 Not tainted 4.12.14-041214-generic #201709200843 [ 20.760772] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 20.760814] Workqueue: netns cleanup_net [ 20.760836] task: 8aa4bcbbad00 task.stack: 9dc5804c [ 20.760867] RIP: 0010:xfrm6_dst_ifdown+0xa0/0xb0 [ 20.760890] RSP: 0018:9dc5804c3be0 EFLAGS: 00010246 [ 20.760916] RAX: 8aa4b6e6a000 RBX: 8aa4bc1b3500 RCX: [ 20.760950] RDX: 0001 RSI: 8aa4b6f39000 RDI: 8aa4bc1b3500 [ 20.760984] RBP: 9dc5804c3c08 R08: 000
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
Ah, fails on 5.2.0-15-generic, 5.3.0-18 generic too. Appears that the regression test was enabled quite recently: commit b5b9181c2403025b2c7ae7ea44333fd8fe6dbb54 (between 5.4-rc3 and 5.4-rc4) Author: David Ahern Date: Mon Oct 21 19:02:43 2019 -0600 selftests: Make l2tp.sh executable commit e858ef1cd4bc1bdfcd18114a8195236e336cee42 (between 5.4-rc3 and 5.4-rc4) Author: David Ahern Date: Mon Aug 5 15:41:37 2019 -0700 Since this breaks in 5.3 then this issue is in eoan and hence is not a focal regression. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: Incomplete Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
Occurs between 5.3 and 5.4-rc1 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: Incomplete Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07 DEBUG| [stdout] [ 3708.084328] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:17 DEBUG| [stdout] [ 3718.134297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:27 DEBUG| [stdout] [ 3728.214335] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:37 DEBUG| [stdout] [ 3738.474354] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:48 DEBUG| [stdout] [ 3748.734396] unregister
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
Easy steps to reproduce this issue:
sudo modprobe l2tp_core
sudo ./linux-5.4.0/tools/testing/selftests/net/l2tp.sh
./close
where close is compiled from:
#include
#include
#include
#include
int main()
{
int fd;
printf("calling socket..\n");
fd = socket(AF_APPLETALK, SOCK_STREAM, 0);
printf("socket returned: %d\n", fd);
}
When running the above program we just see "calling socket" and it
blocks forever on the socket call. After a couple of minutes we get the
kernel hung task warning. We also see repeated messages:
unregister_netdevice: waiting for eth0 to become free. Usage count = 1
I'll bisect the kernel next.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1854968
Title:
stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
Status in linux package in Ubuntu:
Incomplete
Bug description:
stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT
regression testing:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac
/autopkgtest-focal-canonical-kernel-team-
unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz
14:44:30 DEBUG| [stdout] sctp STARTING
14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind
256/256)
14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked
for more than 122 seconds.
14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE
5.4.0-7-generic #8-Ubuntu
14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628
2063618 0x0800
14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace:
14:47:44 DEBUG| [stdout] [ 3684.814360] ([]
__schedule+0x304/0x7b0)
14:47:44 DEBUG| [stdout] [ 3684.814362] []
schedule+0x4a/0xe0
14:47:44 DEBUG| [stdout] [ 3684.814366] []
rwsem_down_write_slowpath+0x22c/0x530
14:47:44 DEBUG| [stdout] [ 3684.814370] []
register_pernet_subsys+0x2c/0x60
14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>]
sctp_init+0x2f0/0x520 [sctp]
14:47:44 DEBUG| [stdout] [ 3684.814414] []
do_one_initcall+0x40/0x200
14:47:44 DEBUG| [stdout] [ 3684.814416] []
do_init_module+0x70/0x270
14:47:44 DEBUG| [stdout] [ 3684.814418] []
load_module+0x1142/0x1440
14:47:44 DEBUG| [stdout] [ 3684.814419] []
__do_sys_finit_module+0xa4/0xf0
14:47:44 DEBUG| [stdout] [ 3684.814421] []
system_call+0x2aa/0x2c8
14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo
to become f
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
The unregister_netdevice issue occurs running the kernel self test in testing/selftests/net/l2tp.sh after modprobing the l2tp driver. A hang can be the produced by running the stress-ng close stressor, this is just expediting an eventual hang caused by this test. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: Incomplete Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07 DEBUG| [stdout] [ 3708.084328] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:17 DEBUG| [stdout] [ 3718.134297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:27 DEBUG| [stdout] [ 3728.214335]
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
I added a background task to dump out new dmesg messages and I now see messages such as the following *before* any stress-ng tests run. I think we can therefore assume the damage to the kernel occurred in prior ADT tests. 11:02:46 DEBUG| [stdout] [ 3093.210307] unregister_netdevice: waiting for lo to become free. Usage count = 1 Current hypothesis is that corruption is happening with the bpf kernel regression tests. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: Incomplete Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07 DEBUG| [stdout] [ 3708.084328] unregister_netdevice: waiting for lo to become free. Usage count =
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
** Changed in: linux (Ubuntu) Assignee: (unassigned) => Colin Ian King (colin-king) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: Incomplete Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07 DEBUG| [stdout] [ 3708.084328] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:17 DEBUG| [stdout] [ 3718.134297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:27 DEBUG| [stdout] [ 3728.214335] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:37 DEBUG| [stdout] [ 3738.474354] unregister_netdevice: waiting for lo to become free. Usage coun
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
And on an arm64 platform we have something similar: 15:55:45 DEBUG| [stdout] Number of CPUs: 4 15:55:45 DEBUG| [stdout] Number of CPUs Online: 4 15:55:45 DEBUG| [stdout] 15:55:45 DEBUG| [stdout] access STARTING 15:55:49 DEBUG| [stdout] [ 7016.776865] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:55:50 DEBUG| [stdout] access RETURNED 0 15:55:50 DEBUG| [stdout] access PASSED 15:55:50 DEBUG| [stdout] af-alg STARTING 15:55:50 DEBUG| [stdout] [ 7017.948549] cryptd: max_cpu_qlen set to 1000 15:55:55 DEBUG| [stdout] af-alg RETURNED 0 15:55:55 DEBUG| [stdout] af-alg PASSED 15:55:55 DEBUG| [stdout] affinity STARTING 15:55:59 DEBUG| [stdout] [ 7026.984742] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:56:00 DEBUG| [stdout] affinity RETURNED 0 15:56:00 DEBUG| [stdout] affinity PASSED 15:56:00 DEBUG| [stdout] aio STARTING 15:56:05 DEBUG| [stdout] aio RETURNED 0 15:56:05 DEBUG| [stdout] aio PASSED 15:56:05 DEBUG| [stdout] aiol STARTING 15:56:09 DEBUG| [stdout] [ 7037.068696] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 ...and a stack dump too. protocol family 5 is AF_APPLETALK and stress-ng does not use exercise this, so this is pretty weird and unexpected. 15:57:08 DEBUG| [stdout] [ 7096.221119] NET: Registered protocol family 5 15:57:10 DEBUG| [stdout] [ 7098.023954] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:57:20 DEBUG| [stdout] [ 7108.103839] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:57:30 DEBUG| [stdout] [ 7118.183729] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:57:41 DEBUG| [stdout] [ 7128.267622] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:57:51 DEBUG| [stdout] [ 7138.343507] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:58:01 DEBUG| [stdout] [ 7148.427381] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:58:11 DEBUG| [stdout] [ 7158.503282] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:58:21 DEBUG| [stdout] [ 7168.587157] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:58:31 DEBUG| [stdout] [ 7178.663042] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:58:41 DEBUG| [stdout] [ 7188.742924] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:58:51 DEBUG| [stdout] [ 7198.822826] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:59:01 DEBUG| [stdout] [ 7208.902688] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:59:11 DEBUG| [stdout] [ 7218.982579] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:59:21 DEBUG| [stdout] [ 7229.062465] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:59:31 DEBUG| [stdout] [ 7239.142348] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:59:42 DEBUG| [stdout] [ 7249.74] unregister_netdevice: waiting for eth0 to become free. Usage count = 1 15:59:44 DEBUG| [stdout] [ 7251.334302] INFO: task modprobe:1184184 blocked for more than 120 seconds. 15:59:44 DEBUG| [stdout] [ 7251.335644] Tainted: G OE 5.4.0-7-generic #8-Ubuntu 15:59:44 DEBUG| [stdout] [ 7251.336889] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 15:59:44 DEBUG| [stdout] [ 7251.338455] modprobeD0 1184184 1142782 0x0028 15:59:44 DEBUG| [stdout] [ 7251.338461] Call trace: 15:59:44 DEBUG| [stdout] [ 7251.338472] __switch_to+0xe4/0x148 15:59:44 DEBUG| [stdout] [ 7251.338478] __schedule+0x2fc/0x7c0 15:59:44 DEBUG| [stdout] [ 7251.338489] schedule+0x3c/0xb8 15:59:44 DEBUG| [stdout] [ 7251.338501] rwsem_down_write_slowpath+0x2e8/0x5b0 15:59:44 DEBUG| [stdout] [ 7251.338512] down_write+0x70/0x80 15:59:44 DEBUG| [stdout] [ 7251.338525] register_netdevice_notifier+0x4c/0x208 15:59:44 DEBUG| [stdout] [ 7251.338548] atalk_init+0xa0/0x118 [appletalk] 15:59:44 DEBUG| [stdout] [ 7251.338570] do_one_initcall+0x50/0x220 15:59:44 DEBUG| [stdout] [ 7251.338575] do_init_module+0x5c/0x248 15:59:44 DEBUG| [stdout] [ 7251.338582] load_module+0xecc/0x1170 15:59:44 DEBUG| [stdout] [ 7251.338585] __do_sys_finit_module+0xac/0x110 15:59:44 DEBUG| [stdout] [ 7251.338587] __arm64_sys_finit_module+0x28/0x38 15:59:44 DEBUG| [stdout] [ 7251.338591] el0_svc_common.constprop.0+0xdc/0x1d8 15:59:44 DEBUG| [stdout] [ 7251.338593] el0_svc_handler+0x34/0xa0 15:59:44 DEBUG| [stdout] [ 7251.338595] el0_svc+0x10/0x14 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: Incomplete Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing:
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
I can't easily reproduce this on a s390 VM instance. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: New Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07 DEBUG| [stdout] [ 3708.084328] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:17 DEBUG| [stdout] [ 3718.134297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:27 DEBUG| [stdout] [ 3728.214335] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:37 DEBUG| [stdout] [ 3738.474354] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:48 DEBUG| [stdout] [ 3748.734
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
net/core/dev.c netdev_wait_allrefs() states:
**
* netdev_wait_allrefs - wait until all references are gone.
* @dev: target net_device
*
* This is called when unregistering network devices.
*
* Any protocol or device that holds a reference should register
* for netdevice notification, and cleanup and put back the
* reference if they receive an UNREGISTER event.
* We can get stuck here if buggy protocols don't correctly
* call dev_put.
*/
...
if (refcnt && time_after(jiffies, warning_time + 10 * HZ)) {
pr_emerg("unregister_netdevice: waiting for %s to
become free. Usage count = %d\n",
dev->name, refcnt);
warning_time = jiffies;
}
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1854968
Title:
stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
Status in linux package in Ubuntu:
New
Bug description:
stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT
regression testing:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac
/autopkgtest-focal-canonical-kernel-team-
unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz
14:44:30 DEBUG| [stdout] sctp STARTING
14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind
256/256)
14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo
to become free. Usage count = 1
14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked
for more than 122 seconds.
14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE
5.4.0-7-generic #8-Ubuntu
14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628
2063618 0x0800
14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace:
14:47:44 DEBUG| [stdout] [ 3684.814360] ([]
__schedule+0x304/0x7b0)
14:47:44 DEBUG| [stdout] [ 3684.814362] []
schedule+0x4a/0xe0
14:47:44 DEBUG| [stdout] [ 3684.814366] []
rwsem_down_write_slowpath+0x22c/0x530
14:47:44 DEBUG| [stdout] [ 3684.814370] []
register_pernet_subsys+0x2c/0x60
14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>]
sctp_init+0x2f0/0x520 [sctp]
14:47:44 DEBUG| [stdout] [ 3684.814414] []
do_one_initcall+0x40/0x200
14:47:44 DEBUG| [stdout] [ 3684.814416] []
do_init_module+0x70/0x270
14:47:44 DEBUG| [stdout] [ 3684.814418] []
load_module+0x1142/0x1440
14:47:44 DEBUG| [stdout] [ 3684.814419] []
__do_sys_finit_module+0xa4/0xf0
14:47:44 DEBUG| [stdout] [ 3684.814421] []
system_call+0x2aa/0x2c8
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
This makes sense as the af-alg stressor now exercises a far wider set of crypto engines. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: New Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07 DEBUG| [stdout] [ 3708.084328] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:17 DEBUG| [stdout] [ 3718.134297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:27 DEBUG| [stdout] [ 3728.214335] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:37 DEBUG| [stdout] [ 3738.474354] unregister_netdevice: waiting for lo to become free. Usage count = 1
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
The unregister_netdevice message appears after the af-alg stressor starts, so it maybe a crypto algo that is the root cause: 14:34:33 DEBUG| [stdout] af-alg STARTING 14:34:35 DEBUG| [stdout] [ 2895.954700] unregister_netdevice: waiting for lo to become free. Usage count = 1 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: New Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07 DEBUG| [stdout] [ 3708.084328] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:17 DEBUG| [stdout] [ 3718.134297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:27 DEBUG| [stdout] [ 3728.214
[Kernel-packages] [Bug 1854968] Re: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x
This stress test has not changed much lately, so I'm assuming this is a racy kernel regression. Last stress-sctp changes in stress-ng were: commit 27b045a498b360ccbc761c3b62e3dd38dd744f09 Author: Colin Ian King Date: Sat Aug 10 13:25:34 2019 +0100 stress-sctp: voidify unused return Signed-off-by: Colin Ian King commit 29043afe6d3c2fa95d6ce22c88aa4545d070e722 Author: Colin Ian King Date: Wed Jun 26 12:42:00 2019 +0100 stress-sctp: use setsockopt for more socket option exercising -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1854968 Title: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x Status in linux package in Ubuntu: New Bug description: stress-ng sctp stressor breaks 5.4.0.7-8 on s390x during ADT regression testing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac /autopkgtest-focal-canonical-kernel-team- unstable/focal/s390x/l/linux/20191203_153629_d7a41@/log.gz 14:44:30 DEBUG| [stdout] sctp STARTING 14:44:30 DEBUG| [stdout] [ 3491.098762] sctp: Hash tables configured (bind 256/256) 14:44:33 DEBUG| [stdout] [ 3494.694285] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:43 DEBUG| [stdout] [ 3504.714324] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:44:54 DEBUG| [stdout] [ 3514.974288] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:04 DEBUG| [stdout] [ 3525.234306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:14 DEBUG| [stdout] [ 3535.494291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:25 DEBUG| [stdout] [ 3545.754323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:35 DEBUG| [stdout] [ 3556.014294] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:45 DEBUG| [stdout] [ 3566.034317] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:45:55 DEBUG| [stdout] [ 3576.054296] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:05 DEBUG| [stdout] [ 3586.324332] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:15 DEBUG| [stdout] [ 3596.334306] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:25 DEBUG| [stdout] [ 3606.594337] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:36 DEBUG| [stdout] [ 3616.854305] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:46 DEBUG| [stdout] [ 3627.124323] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:46:56 DEBUG| [stdout] [ 3637.154313] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:06 DEBUG| [stdout] [ 3647.414304] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:16 DEBUG| [stdout] [ 3657.674353] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:27 DEBUG| [stdout] [ 3667.734297] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:37 DEBUG| [stdout] [ 3677.994396] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:44 DEBUG| [stdout] [ 3684.814335] INFO: task modprobe:2063628 blocked for more than 122 seconds. 14:47:44 DEBUG| [stdout] [ 3684.814345] Tainted: P OE 5.4.0-7-generic #8-Ubuntu 14:47:44 DEBUG| [stdout] [ 3684.814346] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 14:47:44 DEBUG| [stdout] [ 3684.814348] modprobeD0 2063628 2063618 0x0800 14:47:44 DEBUG| [stdout] [ 3684.814351] Call Trace: 14:47:44 DEBUG| [stdout] [ 3684.814360] ([] __schedule+0x304/0x7b0) 14:47:44 DEBUG| [stdout] [ 3684.814362] [ ] schedule+0x4a/0xe0 14:47:44 DEBUG| [stdout] [ 3684.814366] [ ] rwsem_down_write_slowpath+0x22c/0x530 14:47:44 DEBUG| [stdout] [ 3684.814370] [ ] register_pernet_subsys+0x2c/0x60 14:47:44 DEBUG| [stdout] [ 3684.814411] [<03ff80766638>] sctp_init+0x2f0/0x520 [sctp] 14:47:44 DEBUG| [stdout] [ 3684.814414] [ ] do_one_initcall+0x40/0x200 14:47:44 DEBUG| [stdout] [ 3684.814416] [ ] do_init_module+0x70/0x270 14:47:44 DEBUG| [stdout] [ 3684.814418] [ ] load_module+0x1142/0x1440 14:47:44 DEBUG| [stdout] [ 3684.814419] [ ] __do_sys_finit_module+0xa4/0xf0 14:47:44 DEBUG| [stdout] [ 3684.814421] [ ] system_call+0x2aa/0x2c8 14:47:47 DEBUG| [stdout] [ 3688.014291] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:47:57 DEBUG| [stdout] [ 3698.064370] unregister_netdevice: waiting for lo to become free. Usage count = 1 14:48:07 DEBUG| [stdout]
