marking resolved for the devel series, per description.
** Changed in: procps (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/2035061
Title:
uptime -p reports incorrect output after 52 weeks
Status in procps package in Ubuntu:
Fix Released
Status in procps source package in Focal:
New
Status in procps source package in Jammy:
New
Bug description:
[ Impact ]
uptime -p will provide incorrect data for 24 hours after exactly 52 weeks.
Users and tools utilizing this command will receive example output "up 2 hours"
instead of "up 52 weeks, 2 hours". After 24 hours since 52 weeks, uptime -p
will report "up 1 year" which is correct output.
Issue is already fixed in upstream
https://gitlab.com/procps-ng/procps/-/commit/0496b39876d569fe1cecb76ad5ef212cd14c0374.
Latest procps releases already include this patch (procps 4.0.3 lunar/mantic)
The fix is needed for following set of packages:
procps | 2:3.3.17-6ubuntu2 | jammy
procps | 2:3.3.16-1ubuntu2 | focal
[ Test Plan ]
Reproduction:
UPTIME="31528920 31528800"; mkfifo uptime_fifo; while true; do cat <<<$UPTIME
> uptime_fifo; done & sudo mount -obind uptime_fifo /proc/uptime
uptime -p
Running above commands will result in incorrect uptime output.
Testing:
In attached uptime_test_results file there is modified print_uptime function
which has been used to test multiple corner cases.
[ Where problems could occur ]
Proposed changes modifies output format of "uptime -p". Issue has been
already fixed in latest version of procps package available in lunar/mantic
however older releases are based on different code base and patch cannot be
directly cherry-picked. Due to backport requirements some code of "uptime"
(without -p) has been also changed but this should not impact logic for that
usage.
As the change focuses on modifying "uptime -p" output format any potential
issues will impact this command.
I have also looked for a reverse dependencies on procps package to check for
potential uses of uptime -p, however I was not able to find any. Internally
within procps package this functionality is used in "top" application, however
for that case "uptime" (without -p) is used.
[ Other Info ]
Bug upstream: https://gitlab.com/procps-ng/procps/-/issues/217
Following patch is needed for older releases:
https://gitlab.com/procps-ng/procps/-/commit/0496b39876d569fe1cecb76ad5ef212cd14c0374
Old commit on which upstream patch is based:
https://gitlab.com/procps-ng/procps/-/commit/8827c6763f79f77a126968e200b0e402de7cb749
Small change on top of proposed patch (already included in debdiff):
https://gitlab.com/procps-ng/procps/-/commit/10824b0655f3eeaeac87ae6e4e3881429a237f3e
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