Messages in this thread | | | Subject | Re: Reading `/sys/kernel/debug/kmemleak` takes 3 s and content not shown | From | Paul Menzel <> | Date | Tue, 26 Mar 2019 14:17:01 +0100 |
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Dear Christophe,
On 26.03.19 13:55, Christophe Leroy wrote:
> Le 26/03/2019 à 13:49, Paul Menzel a écrit :
>> On 19.02.19 10:44, Paul Menzel wrote: >> >>> On a the IBM S822LC (8335-GTA) with Ubuntu 18.10, and Linux 5.0-rc5+ >>> accessing `/sys/kernel/debug/kmemleak` takes a long time. According to >>> strace it takes three seconds. >>> >>> $ dmesg | grep leak >>> [ 4.407957] kmemleak: Kernel memory leak detector initialized >>> [ 4.407959] kmemleak: Automatic memory scanning thread started >>> [745989.625624] kmemleak: 1 new suspected memory leaks (see >>> /sys/kernel/debug/kmemleak) >>> [1002619.951902] kmemleak: 1 new suspected memory leaks (see >>> /sys/kernel/debug/kmemleak) >>> ``` >>> >>> Unfortunately, the leaks supposedly stored in that file are not shown >>> either. >> >> The problem is still present with Linux 5.0. Do you have an idea, how >> to fix this? > > Have you identified a previous version that works properly?
It seems to have worked with Linux 4.18-rc4+ [1].
> If so, have you been able to bisect the problem?
No, sorry, I have not. I do not have resources for this.
Kind regards,
Paul
[1]: https://lists.ozlabs.org/pipermail/linuxppc-dev/2018-July/175658.html
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