Re: 5.1 kernel: khugepaged stuck at 100%

2019-06-07 Thread Max Kellermann
On 2019/06/07 09:40, Max Kellermann wrote: > On 2019/06/06 19:24, Max Kellermann wrote: > > I have the same problem (kernel 5.1.7), but over here, it's a PHP > > process, not khugepaged, which is looping inside compaction_alloc. > > This is what happened an hour later: > > kernel tried to exec

Re: 5.1 kernel: khugepaged stuck at 100%

2019-06-07 Thread Oleksandr Natalenko
Hi. On Fri, Jun 07, 2019 at 09:40:52AM +0200, Max Kellermann wrote: > On 2019/06/06 19:24, Max Kellermann wrote: > > I have the same problem (kernel 5.1.7), but over here, it's a PHP > > process, not khugepaged, which is looping inside compaction_alloc. > > This is what happened an hour later: >

Re: 5.1 kernel: khugepaged stuck at 100%

2019-06-07 Thread Max Kellermann
On 2019/06/06 19:24, Max Kellermann wrote: > I have the same problem (kernel 5.1.7), but over here, it's a PHP > process, not khugepaged, which is looping inside compaction_alloc. This is what happened an hour later: kernel tried to execute NX-protected page - exploit attempt? (uid: 3) BUG

Re: 5.1 kernel: khugepaged stuck at 100%

2019-06-06 Thread Max Kellermann
On 2019/05/16 16:14, Justin Piszcz wrote: > Kernel: 5.1.2 > > $ sudo cat /proc/$(pidof khugepaged)/stack > [<0>] 0x > > $ perf top > >PerfTop:3716 irqs/sec kernel:92.9% exact: 99.1% lost: 68/68 > drop: 0/0 [4000Hz cycles], (all, 12 CPUs) >

Re: 5.1 kernel: khugepaged stuck at 100%

2019-05-24 Thread Oleksandr Natalenko
On Thu, May 16, 2019 at 10:27:50AM -0400, Justin Piszcz wrote: > On Thu, May 16, 2019 at 10:17 AM Justin Piszcz > wrote: > > > > On Thu, May 16, 2019 at 10:14 AM Justin Piszcz > > wrote: > > > > > > On Tue, May 14, 2019 at 9:16 AM Kirill A. Shutemov > > > wrote: > > > > > > > Could you check

Re: 5.1 kernel: khugepaged stuck at 100%

2019-05-16 Thread Justin Piszcz
On Thu, May 16, 2019 at 10:17 AM Justin Piszcz wrote: > > On Thu, May 16, 2019 at 10:14 AM Justin Piszcz > wrote: > > > > On Tue, May 14, 2019 at 9:16 AM Kirill A. Shutemov > > wrote: > > > > > Could you check what khugepaged doing? > > > > > > cat /proc/$(pidof khugepaged)/stack > > > > It is

Re: 5.1 kernel: khugepaged stuck at 100%

2019-05-16 Thread Justin Piszcz
On Thu, May 16, 2019 at 10:14 AM Justin Piszcz wrote: > > On Tue, May 14, 2019 at 9:16 AM Kirill A. Shutemov > wrote: > > > Could you check what khugepaged doing? > > > > cat /proc/$(pidof khugepaged)/stack > > It is doing it again, 10:12am - 2019-05-16 > > PID USER PR NIVIRTRES

Re: 5.1 kernel: khugepaged stuck at 100%

2019-05-16 Thread Justin Piszcz
On Tue, May 14, 2019 at 9:16 AM Kirill A. Shutemov wrote: > Could you check what khugepaged doing? > > cat /proc/$(pidof khugepaged)/stack It is doing it again, 10:12am - 2019-05-16 PID USER PR NIVIRTRESSHR S %CPU %MEM TIME+ COMMAND 77 root 39 19 0

RE: 5.1 kernel: khugepaged stuck at 100%

2019-05-15 Thread Justin Piszcz
> -Original Message- > From: Kirill A. Shutemov [mailto:kir...@shutemov.name] > Sent: Thursday, May 09, 2019 7:14 AM > To: Justin Piszcz > Cc: linux-kernel@vger.kernel.org > Subject: Re: 5.1 kernel: khugepaged stuck at 100% > > On Thu, May 09, 2019 at 05:54:5

Re: 5.1 kernel: khugepaged stuck at 100%

2019-05-14 Thread Kirill A. Shutemov
On Thu, May 09, 2019 at 05:54:56AM -0400, Justin Piszcz wrote: > Hello, > > Kernel: 5.1 (self-compiled, no modules) > Arch: x86_64 > Distro: Debian Testing > > Issue: I was performing a dump of ext3 and ext4 filesystems and then > restoring them to a separate volume (testing)-- afterwards I notic

Re: 5.1 kernel: khugepaged stuck at 100%

2019-05-09 Thread Justin Piszcz
On Thu, May 9, 2019 at 5:54 AM Justin Piszcz wrote: > > Hello, > > Kernel: 5.1 (self-compiled, no modules) > Arch: x86_64 > Distro: Debian Testing > > Issue: I was performing a dump of ext3 and ext4 filesystems and then > restoring them to a separate volume (testing)-- afterwards I noticed that >