I tried to run the apport-collect on one of the server we can see the
issue on :
Waiting to hear from Launchpad about your decision...
*** Collecting problem information
The collected information can be sent to the developers to improve the
application. This might take a few minutes.
..........dpkg-query: no packages found matching linux
..
Traceback (most recent call last):
File "/usr/bin/apport-cli", line 370, in <module>
if not app.run_argv():
File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 666, in run_argv
return self.run_update_report()
File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 564, in
run_update_report
self.report.add_proc_environ()
File "/usr/lib/python2.7/dist-packages/apport/report.py", line 577, in
add_proc_environ
proc_pid_fd = os.open('/proc/%s' % pid, os.O_RDONLY | os.O_PATH |
os.O_DIRECTORY)
AttributeError: 'module' object has no attribute 'O_PATH'
Error in sys.excepthook:
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 109, in
apport_excepthook
pr.add_proc_info(extraenv=['PYTHONPATH', 'PYTHONHOME'])
File "/usr/lib/python2.7/dist-packages/apport/report.py", line 507, in
add_proc_info
proc_pid_fd = os.open('/proc/%s' % pid, os.O_RDONLY | os.O_PATH |
os.O_DIRECTORY)
AttributeError: 'module' object has no attribute 'O_PATH'
But since the bug has already been marked as "Confirmed".
--
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/1900438
Title:
Bcache bypasse writeback on caching device with fragmentation
Status in linux package in Ubuntu:
Confirmed
Bug description:
Hello,
An upstream bug has been opened on the matter for quite some time now [0].
I can reproduce easily on our production compute node instance, which are
trusty host with xenial hwe kernels (4.15.0-101-generic).
However due to heavy backport and such, doing real tracing is a bit hard
there.
I was able to reproduce the behavior on a hwe-bionic kernel as well.
Since most of our critical deployments use bcache, I think this is a kinda
nasty bug to have.
Reproducing the issue is relatively easy with the script provided in the bug
[1].
The script used to capture the stats is this one [2].
[0]: https://bugzilla.kernel.org/show_bug.cgi?id=206767
[1]: https://pastebin.ubuntu.com/p/YnnvvSRhXK/
[2]: https://pastebin.ubuntu.com/p/XfVpzg32sN/
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1900438/+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
