From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juergen Gross Subject: Re: hypervisor crash with latest xen-unstable Date: Fri, 26 Nov 2010 11:24:13 +0100 Message-ID: <4CEF8ACD.2000208@ts.fujitsu.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Keir Fraser Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org Thanks, is working again! Juergen On 11/26/10 11:12, Keir Fraser wrote: > Fixed by xen-unstable:22342. > > K. > > On 25/11/2010 10:27, "Juergen Gross" wrote: > >> Hi, >> >> latest xen-unstable crashed when I tried to remove a cpu from a cpupool via >> >> xl cpupool-cpu-remove >> >> Serial log shows: >> >> (XEN) Assertion '!(((*({ unsigned long __ptr; __asm__ ("" : "=r"(__ptr) : >> "0"(&per_cpu____preempt_count)); (typeof(&per_cpu____preempt_count)) (__ptr + >> (get_cpu_info()->per_cpu_offset)); }))) || >> ((irq_stat[(((get_cpu_info()->processor_id)))].__local_irq_count) != 0) || >> !local_irq_is_enabled())' failed at softirq.c:61 >> (XEN) ----[ Xen-4.1-unstable x86_64 debug=y Tainted: C ]---- >> (XEN) CPU: 5 >> (XEN) RIP: e008:[] do_softirq+0x51/0x7a >> (XEN) RFLAGS: 0000000000010202 CONTEXT: hypervisor >> (XEN) rax: ffff82c4802ca2a0 rbx: ffff8300780da000 rcx: ffff82c4802a7080 >> (XEN) rdx: 00000043b9aefd80 rsi: ffff830839db7ec0 rdi: ffff82c48024d0e0 >> (XEN) rbp: ffff830839db7f08 rsp: ffff830839db7f08 r8: 0000000000000005 >> (XEN) r9: 0000ffff0000ffff r10: 00000000deadbeef r11: 0f0f0f0f0f0f0f0f >> (XEN) r12: ffff8803f8f61440 r13: ffff8803fdf4fe58 r14: 0000000000000000 >> (XEN) r15: 00007fff335d7150 cr0: 0000000080050033 cr4: 00000000000026f0 >> (XEN) cr3: 0000000846990000 cr2: 0000000000627048 >> (XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: e010 cs: e008 >> (XEN) Xen stack trace from rsp=ffff830839db7f08: >> (XEN) 00007cf7c62480c7 ffff82c480202736 00007fff335d7150 0000000000000000 >> (XEN) ffff8803fdf4fe58 ffff8803f8f61440 ffffffffffffffda ffff8803fd491438 >> (XEN) 0000000000000216 000000000061e004 000000000061d050 00007f6d701d9f6c >> (XEN) 0000000000000000 ffffffff8000346a 000000000061c2e0 0000000000624004 >> (XEN) 00000000deadbeef 0000010000000000 ffffffff8000346a 000000000000e033 >> (XEN) 0000000000000216 ffff8803fdf4fd80 000000000000e02b 0000000000000000 >> (XEN) 0000000000000000 0000000000000000 0000000000000000 0000000000000005 >> (XEN) ffff8300780da000 00000043b9aefd80 0000000000000000 >> (XEN) Xen call trace: >> (XEN) [] do_softirq+0x51/0x7a >> (XEN) >> >> I suspect the waitqueue stuff broke the continue_hypercall_on_cpu() stuff. >> >> >> Juergen > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel > > -- Juergen Gross Principal Developer Operating Systems TSP ES&S SWE OS6 Telephone: +49 (0) 89 3222 2967 Fujitsu Technology Solutions e-mail: juergen.gross@ts.fujitsu.com Domagkstr. 28 Internet: ts.fujitsu.com D-80807 Muenchen Company details: ts.fujitsu.com/imprint.html