** Changed in: linux-aws (Ubuntu)
Assignee: (unassigned) => Colin Ian King (colin-king)
** Changed in: linux-aws (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux-aws (Ubuntu)
Status: New => In Progress
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** Also affects: linux-aws (Ubuntu Disco)
Importance: Undecided
Status: New
** Also affects: ubuntu-kernel-tests
Importance: Undecided
Status: New
** Tags added: sru-20190722 ubuntu-stress-smoke-test
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I was incorrect, it's actually a racy read on /proc/bus/pci/:00/00.0
that's causing a hang:
sudo cat /proc/bus/pci/\:00/00.0
..takes a few seconds.. with stress-ng we have a multi-threaded
open/read/close on this file with random read sizes, this seems to cause
the machine to hang and
OK, it seems to hang on PCI device 00:01.0: 00:01.0 Serial controller:
Amazon.com, Inc. Device 8250
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Packages, which is subscribed to linux-aws in Ubuntu.
https://bugs.launchpad.net/bugs/1839461
Title:
sysfs / procfs from
I'm hitting hangs when exercising /proc/bus/pci/:00/00.0 - i believe
after a specific amount of time the watchdog reboots the machine
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@Sam, I tested this out and the machine went off line, so I'm not sure
if it died or got reprovisioned.
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https://bugs.launchpad.net/bugs/1839461
Title:
sysfs / procfs
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