I tried the +3 kernel first, and I got 3 installs and then this hang:
[ 549.828710] bcache: run_cache_set() invalidating existing data [ 549.836485] bcache: register_cache() registered cache device nvme1n1p2 [ 549.937486] bcache: register_bdev() registered backing device vdg [ 550.018855] bcache: bch_cached_dev_attach() Caching vdg as bcache3 on set c7abd3ea-f9c9-415a-b8a6-9efeddc3e030 [ 550.074760] bcache: register_bcache() error /dev/vdg: device already registered (emitting change event) [ 550.316246] bcache: register_bcache() error /dev/vdg: device already registered (emitting change event) [ 550.545840] bcache: register_bcache() error /dev/vdg: device already registered (emitting change event) [ 550.565928] bcache: register_bcache() error /dev/vdg: device already registered (emitting change event) [ 550.724285] bcache: register_bcache() error /dev/vdg: device already registered (emitting change event) [ 562.352520] md: md0: resync done. [ 725.980380] INFO: task python3:27303 blocked for more than 120 seconds. [ 725.982364] Tainted: P O 4.15.0-56-generic #62~lp1796292+3 [ 725.984228] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 725.986284] python3 D 0 27303 27293 0x00000000 [ 725.986287] Call Trace: [ 725.986319] __schedule+0x291/0x8a0 [ 725.986322] schedule+0x2c/0x80 [ 725.986337] bch_bucket_alloc+0x320/0x3a0 [bcache] [ 725.986359] ? wait_woken+0x80/0x80 [ 725.986363] __bch_bucket_alloc_set+0xfe/0x150 [bcache] [ 725.986367] bch_bucket_alloc_set+0x4e/0x70 [bcache] [ 725.986372] __uuid_write+0x59/0x150 [bcache] [ 725.986377] ? __write_super+0x137/0x170 [bcache] [ 725.986382] bch_uuid_write+0x16/0x40 [bcache] [ 725.986386] __cached_dev_store+0x1d8/0x8a0 [bcache] [ 725.986391] bch_cached_dev_store+0x39/0xc0 [bcache] [ 725.986399] sysfs_kf_write+0x3c/0x50 [ 725.986401] kernfs_fop_write+0x125/0x1a0 [ 725.986406] __vfs_write+0x1b/0x40 [ 725.986407] vfs_write+0xb1/0x1a0 [ 725.986409] SyS_write+0x5c/0xe0 [ 725.986416] do_syscall_64+0x73/0x130 [ 725.986419] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 725.986421] RIP: 0033:0x7f2d7c39a154 [ 725.986422] RSP: 002b:00007fff80c5e048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 725.986426] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f2d7c39a154 [ 725.986426] RDX: 0000000000000008 RSI: 000000000247e7d0 RDI: 0000000000000003 [ 725.986427] RBP: 00007f2d7c8956c0 R08: 0000000000000000 R09: 0000000000000000 [ 725.986428] R10: 0000000000000100 R11: 0000000000000246 R12: 0000000000000003 [ 725.986428] R13: 0000000000000000 R14: 000000000247e7d0 R15: 00000000021b6e60 -- 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/1796292 Title: Tight timeout for bcache removal causes spurious failures Status in curtin: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Confirmed Status in linux source package in Cosmic: Confirmed Status in linux source package in Disco: Confirmed Status in linux source package in Eoan: Confirmed Bug description: I've had a number of deployment faults where curtin would report Timeout exceeded for removal of /sys/fs/bcache/xxx when doing a mass- deployment of 30+ nodes. Upon retrying the node would usually deploy fine. Experimentally I've set the timeout ridiculously high, and it seems I'm getting no faults with this. I'm wondering if the timeout for removal is set too tight, or might need to be made configurable. --- curtin/util.py~ 2018-05-18 18:40:48.000000000 +0000 +++ curtin/util.py 2018-10-05 09:40:06.807390367 +0000 @@ -263,7 +263,7 @@ return _subp(*args, **kwargs) -def wait_for_removal(path, retries=[1, 3, 5, 7]): +def wait_for_removal(path, retries=[1, 3, 5, 7, 1200, 1200]): if not path: raise ValueError('wait_for_removal: missing path parameter') To manage notifications about this bug go to: https://bugs.launchpad.net/curtin/+bug/1796292/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
