Hi Ryan, I've uploaded a new test kernel: https://kernel.ubuntu.com/~arighi/LP-1796292/4.15.0-54.58+lp1796292/
This one is based on 4.15.0-54.58 and it addresses specifically the bch_bucket_alloc() problem (with this patch applied: https://lore.kernel.org/lkml/20190710093117.GA2792@xps-13/T/#u). With this kernel I wasn't able to reproduce the hung task timeout issue in bch_bucket_alloc() anymore. It would be great if you could repeat your test also with this kernel. Thanks in advance! -- 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