search for: __next_cpu

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...bra kernel: [<ffffffff8025a440>] kobject_get+0x12/0x17 Apr 5 09:03:07 zebra kernel: [<ffffffff8024b57f>] blk_get_queue+0x1f/0x26 Apr 5 09:03:07 zebra kernel: [<ffffffff887198f7>] :blkbk:dispatch_rw_block_io+0x4db/0x5a2 Apr 5 09:03:07 zebra kernel: [<ffffffff80340368>] __next_cpu+0x19/0x28 Apr 5 09:03:07 zebra kernel: [<ffffffff8026082b>] error_exit+0x0/0x6e Apr 5 09:03:07 zebra kernel: [<ffffffff8028792a>] find_busiest_group+0x1db/0x44d Apr 5 09:03:07 zebra kernel: [<ffffffff802883c0>] dequeue_task+0x18/0x37 Apr 5 09:03:07 zebra kernel: [<fffff...

...cpu3 kernel: [<ffffffff887a37d0>] :mdc:mdc_reint+0xc0/0x240 Dec 11 18:46:33 cpu3 kernel: [<ffffffff887a5c77>] :mdc:mdc_unlink_pack+0x117/0x140 Dec 11 18:46:33 cpu3 kernel: [<ffffffff887a4ab7>] :mdc:mdc_unlink+0x307/0x3d0 Dec 11 18:46:33 cpu3 kernel: [<ffffffff801405f7>] __next_cpu+0x19/0x28 Dec 11 18:46:33 cpu3 kernel: [<ffffffff80087090>] find_busiest_group+0x20d/0x621 Dec 11 18:46:33 cpu3 kernel: [<ffffffff80009499>] __d_lookup+0xb0/0xff Dec 11 18:46:33 cpu3 kernel: [<ffffffff8886ced6>] :lustre:ll_unlink+0x1d6/0x370 Dec 11 18:46:33 cpu3 kernel: [<f...

I am confused with a problem: I have a blade with 64 physical CPUs and 64G physical RAM, and defined only one VM with 1 CPU and 40G RAM. For the first time I started the VM, it just took 3s, But for the second starting it took 30s. After studied it by printing log, I have located a place in the hypervisor where cost too much time, occupied 98% of the whole starting time. xen/common/page_alloc.c

...ly_wait+0x138/0x296 [<ffffffff880c38a3>] :mptbase:SendIocInit+0x242/0x325 [<ffffffff880c32d5>] :mptbase:GetIocFacts+0x7e/0x253 [<ffffffff880c4459>] :mptbase:MakeIocReady+0x62f/0xa67 [<ffffffff880c6b2b>] :mptbase:mpt_do_ioc_recovery+0xfbd/0xffd [<ffffffff803282e8>] __next_cpu+0x19/0x28 [<ffffffff8027efa9>] find_busiest_group+0x1db/0x44a [<ffffffff802809ca>] rebalance_tick+0x1be/0x411 [<ffffffff802958f4>] run_posix_cpu_timers+0x25/0x690 [<ffffffff880c6c1c>] :mptbase:mpt_HardResetHandler+0xb1/0x123 [<ffffffff880c6c8e>] :mptbase:mpt_timer...

...; undeclared (first use in this function) /usr/include/linux/cpumask.h:210: error: `nbits' undeclared (first use in this function) /usr/include/linux/cpumask.h: At top level: /usr/include/linux/cpumask.h:214: error: parse error before '*' token /usr/include/linux/cpumask.h: In function `__next_cpu': /usr/include/linux/cpumask.h:216: error: `srcp' undeclared (first use in this function) /usr/include/linux/cpumask.h:216: error: `nbits' undeclared (first use in this function) /usr/include/linux/cpumask.h:216: error: `n' undeclared (first use in this function) /usr/include/linux/...

...r_exit+0x0/0x69 Apr 11 04:24:42 xenserver kernel: [277246.634734] [<ffffffff804369b7>] error_exit+0x0/0x69 Apr 11 04:24:42 xenserver kernel: [277246.634744] [<ffffffff80434efe>] schedule_timeout+0x1e/0xad Apr 11 04:24:42 xenserver kernel: [277246.634754] [<ffffffff8030dc91>] __next_cpu+0x19/0x26 Apr 11 04:24:42 xenserver kernel: [277246.634766] [<ffffffffa02357d2>] :md_mod:md_thread+0xd7/0xed Apr 11 04:24:42 xenserver kernel: [277246.634775] [<ffffffff8023f4e5>] autoremove_wake_function+0x0/0x2e Apr 11 04:24:42 xenserver kernel: [277246.634788] [<ffffffffa0235...