[lkp] [+83 bytes kernel size regression] [i386-tinyconfig] [97192c6c04] sched/core: Add function to sample state of locked-down task
12:49 p.m.
FYI, we noticed a +83 bytes kernel size regression due to commit:
commit: 97192c6c046907e58e6cdb958d0c3d7e5d7c289d (sched/core: Add function to sample state
of locked-down task)
https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2020.04.13b
Details as below (size data is obtained by `nm --size-sort vmlinux`):
d9899f93: MAINTAINERS: Update maintainers for new Documentaion/litmus-tests/
97192c6c: sched/core: Add function to sample state of locked-down task
+-------------------------------------+----------+----------+-------+
| symbol | d9899f93 | 97192c6c | delta |
+-------------------------------------+----------+----------+-------+
| bzImage | 439232 | 439392 | 160 |
| nm.T.try_invoke_on_locked_down_task | 0 | 83 | 83 |
+-------------------------------------+----------+----------+-------+
Thanks,
Kbuild test robot
1:03 p.m.
On Fri, Apr 17, 2020 at 10:49:49AM +0800, kbuild test robot wrote:
FYI, we noticed a +83 bytes kernel size regression due to commit:
commit: 97192c6c046907e58e6cdb958d0c3d7e5d7c289d (sched/core: Add function to sample
state of locked-down task)
https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2020.04.13b
Details as below (size data is obtained by `nm --size-sort vmlinux`):
d9899f93: MAINTAINERS: Update maintainers for new Documentaion/litmus-tests/
97192c6c: sched/core: Add function to sample state of locked-down task
+-------------------------------------+----------+----------+-------+
| symbol | d9899f93 | 97192c6c | delta |
+-------------------------------------+----------+----------+-------+
| bzImage | 439232 | 439392 | 160 |
| nm.T.try_invoke_on_locked_down_task | 0 | 83 | 83 |
+-------------------------------------+----------+----------+-------+
Given that this commit does nothing but update MAINTAINERS, I have to
assume that this is a false positive. ;-)
Thanx, Paul
1:05 p.m.
On 4/17/20 11:03 AM, Paul E. McKenney wrote:
On Fri, Apr 17, 2020 at 10:49:49AM +0800, kbuild test robot wrote:
> FYI, we noticed a +83 bytes kernel size regression due to commit:
>
> commit: 97192c6c046907e58e6cdb958d0c3d7e5d7c289d (sched/core: Add function to sample
state of locked-down task)
> https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
dev.2020.04.13b
>
> Details as below (size data is obtained by `nm --size-sort vmlinux`):
>
> d9899f93: MAINTAINERS: Update maintainers for new Documentaion/litmus-tests/
> 97192c6c: sched/core: Add function to sample state of locked-down task
>
> +-------------------------------------+----------+----------+-------+
> | symbol | d9899f93 | 97192c6c | delta |
> +-------------------------------------+----------+----------+-------+
> | bzImage | 439232 | 439392 | 160 |
> | nm.T.try_invoke_on_locked_down_task | 0 | 83 | 83 |
> +-------------------------------------+----------+----------+-------+
Given that this commit does nothing but update MAINTAINERS, I have to
assume that this is a false positive. ;-)
Thanx, Paul
_______________________________________________
Hi Paul,
The first bad commit is "97192c6c: sched/core: Add function to sample
state of locked-down task",
the 'update MAINTAINERS' commit is the parent.
Best Regards,
Rong Chen
1:23 p.m.
On Fri, Apr 17, 2020 at 11:05:30AM +0800, Rong Chen wrote:
On 4/17/20 11:03 AM, Paul E. McKenney wrote:
> On Fri, Apr 17, 2020 at 10:49:49AM +0800, kbuild test robot wrote:
> > FYI, we noticed a +83 bytes kernel size regression due to commit:
> >
> > commit: 97192c6c046907e58e6cdb958d0c3d7e5d7c289d (sched/core: Add function to
sample state of locked-down task)
> > https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
dev.2020.04.13b
> >
> > Details as below (size data is obtained by `nm --size-sort vmlinux`):
> >
> > d9899f93: MAINTAINERS: Update maintainers for new Documentaion/litmus-tests/
> > 97192c6c: sched/core: Add function to sample state of locked-down task
> >
> > +-------------------------------------+----------+----------+-------+
> > | symbol | d9899f93 | 97192c6c | delta |
> > +-------------------------------------+----------+----------+-------+
> > | bzImage | 439232 | 439392 | 160 |
> > | nm.T.try_invoke_on_locked_down_task | 0 | 83 | 83 |
> > +-------------------------------------+----------+----------+-------+
> Given that this commit does nothing but update MAINTAINERS, I have to
> assume that this is a false positive. ;-)
>
> Thanx, Paul
> _______________________________________________
Hi Paul,
The first bad commit is "97192c6c: sched/core: Add function to sample state
of locked-down task",
the 'update MAINTAINERS' commit is the parent.
Ah, got it! This is expected behavior, given that I really did add
a function.
Thanx, Paul
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886
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3 comments
3 participants
participants (3)
-
kbuild test robot -
Paul E. McKenney -
Rong Chen