Messages in this thread | | | Subject | Re: [lkp] [rhashtable] 9d901bc0515: WARNING: CPU: 0 PID: 1 at arch/x86/mm/ioremap.c:63 __ioremap_check_ram+0x6a/0x99() | From | Huang Ying <> | Date | Fri, 21 Aug 2015 15:09:42 +0800 |
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On Fri, 2015-08-21 at 14:42 +0800, Herbert Xu wrote: > On Fri, Aug 21, 2015 at 02:05:19PM +0800, kernel test robot wrote: > > FYI, we noticed the below changes on > > > > git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > > master > > commit 9d901bc05153bbf33b5da2cd6266865e531f0545 ("rhashtable: Free > > bucket tables asynchronously after rehash") > > > > With the commit, the possibility of OOM is increased under our boot > > testing. > > Can you gather some stats on how much memory rhashtable is actually > using? With that kernel you've probably got only one rhashtable user > which is netlink. > > Bear in mind that this is a fairly low-memory machine (< 300M) so > it's not clear to me that this patch is the root cause of your OOM > problem.
Sorry, my fault. There are OOM for parent commit too, just some dmesg difference, which I miss understood. Please ignore this report. I will be more careful next time.
Best Regards, Huang, Ying
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