(switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Tue, 19 Nov 2013 19:40:40 +0000 bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=65201 > > Bug ID: 65201 > Summary: kswapd0 randomly high cpu load > Product: Memory Management > Version: 2.5 > Kernel Version: 3.12 > Hardware: x86-64 > OS: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: Other > Assignee: akpm@xxxxxxxxxxxxxxxxxxxx > Reporter: nleo@xxxxx > Regression: No > > kswapd0 randomly load one core of CPU by 100% > > Linux localhost 3.12.0-1-ARCH #1 SMP PREEMPT Wed Nov 6 09:06:27 CET 2013 x86_64 > GNU/Linux > > No swap enabled > > Befor on same laptop was installed Ubuntu 12.04 and kernel 3.2 32-bit pae, and > there is no such problem. > > [root@localhost ~]# free -mh > total used free shared buffers cached > Mem: 3.8G 2.4G 1.3G 0B 150M 508M > -/+ buffers/cache: 1.8G 2.0G > Swap: 0B 0B 0B hm, I wonder what kswapd is up to. Could you please make it happen again and then dmesg -n 7 dmesg -c echo m > /proc/sysrq-trigger echo t > /proc/sysrq-trigger dmesg -s 1000000 > foo then send us foo? > > [root@localhost ~]# cat /proc/meminfo > MemTotal: 3935792 kB > MemFree: 1381360 kB > Buffers: 154216 kB > Cached: 533096 kB > SwapCached: 0 kB > Active: 1958896 kB > Inactive: 438004 kB > Active(anon): 1740916 kB > Inactive(anon): 136292 kB > Active(file): 217980 kB > Inactive(file): 301712 kB > Unevictable: 0 kB > Mlocked: 0 kB > SwapTotal: 0 kB > SwapFree: 0 kB > Dirty: 2064 kB > Writeback: 0 kB > AnonPages: 1709628 kB > Mapped: 196696 kB > Shmem: 167620 kB > Slab: 81516 kB > SReclaimable: 61312 kB > SUnreclaim: 20204 kB > KernelStack: 1696 kB > PageTables: 13088 kB > NFS_Unstable: 0 kB > Bounce: 0 kB > WritebackTmp: 0 kB > CommitLimit: 1967896 kB > Committed_AS: 3498576 kB > VmallocTotal: 34359738367 kB > VmallocUsed: 361304 kB > VmallocChunk: 34359300731 kB > HardwareCorrupted: 0 kB > AnonHugePages: 157696 kB > HugePages_Total: 0 > HugePages_Free: 0 > HugePages_Rsvd: 0 > HugePages_Surp: 0 > Hugepagesize: 2048 kB > DirectMap4k: 18476 kB > DirectMap2M: 4059136 kB > > And I can't kill it. I heared that it's not good idea, but just for lulz) > > -- > You are receiving this mail because: > You are the assignee for the bug. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>