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[Xen-devel] HVM guests hanging in hpet_rtc_interrupt

From: Olaf Hering <olaf@xxxxxxxxx>

Date: Thu, 31 Jan 2013 18:07:18 +0100

Delivery-date: Thu, 31 Jan 2013 17:07:43 +0000

List-id: Xen developer discussion <xen-devel.lists.xen.org>

Current xen-unstable has appearently issues with HVM guest. Within the guest I run either a SLES11SP2 kernel or a 3.7 pvops kernel. dom0 is either SLES11SP2 or also 3.7 pvops. After a first start of pvops guest on a pvops dom0 I see the guest hanging with the backtrace below, after the boot scripts set the real time clock. Once I kill the guest and start it again booting proceeds. After I do a xl migrate domU localhost I can not access the guest again with xl console. xenctx shows the same backtrace as shown below. With a sles11sp2 dom0 + domU I see in guest dmesg 'hpet1: lost 2000 timer interrupts' (or similar) printed every second. Any idea what could be the reason? The domU.cfg, started with xl create, looks like this: ... name="name" description="something" uuid="a062cabb-5981-4472-9d3b-da7bd8e2594e" memory=512 vcpus=2 serial="pty" builder="hvm" boot="dcn" disk=[ 'file:/some/loop-disk0,hda,w', ] vif=[ 'bridge=br0,model=rtl8139,type=netfront' ] vfb = [ 'type=vnc,vncunused=1,keymap=de' ] on_crash="preserve" ... xenctx output: ... rip: ffffffff81034b97 hpet_rtc_interrupt+0x97 flags: 00000086 s nz p rsp: ffff88001b003df8 rax: 00000000bc004a66 rcx: 00000000000ee6b2 rdx: 00000000ba6b145a rbx: 000000000000087d rsi: ffff88001aec5000 rdi: 0000000000000008 rbp: ffff88001b003e68 r8: ffff88001ac06800 r9: ffff88001b003e38 r10: 000000000000008c r11: 000000000000f800 r12: ffff88001ac06884 r13: 0000000000000000 r14: 0000000000000000 r15: 0000000000000008 cs: 0010 ss: 0018 ds: 0000 es: 0000 fs: 0000 @ 0000000000000000 gs: 0000 @ ffff88001b000000/0000000000000000 Code (instr addr ffffffff81034b97) 00 89 10 48 8b 05 74 da d0 00 83 c3 01 48 05 f0 00 00 00 8b 00 <3b> 05 d3 da d0 00 79 c9 85 db 74 Stack: ffff88001b003e68 ffff88001aec5000 0000000000000000 0000000800000000 ffff88001ad49c68 0000000000000000 00000008156570c6 ffffffff8165e9cc ffff88001b0125c0 ffff880019278480 ffff88001ac06884 0000000000000000 0000000000000000 0000000000000008 ffff88001b003eb8 ffffffff8109aa2b Call Trace: [<ffffffff81034b97>] hpet_rtc_interrupt+0x97 <-- [<ffffffff8165e9cc>] _raw_spin_unlock_irqrestore+0xc [<ffffffff8109aa2b>] handle_irq_event_percpu+0x4b [<ffffffff8109ab8c>] handle_irq_event+0x3c [<ffffffff8109d79d>] handle_edge_irq+0x6d [<ffffffff8142b474>] __xen_evtchn_do_upcall+0x1a4 [<ffffffff8142ca6a>] xen_evtchn_do_upcall+0x2a [<ffffffff81660aad>] xen_hvm_callback_vector+0x6d rip: ffffffff810360d6 native_safe_halt+0x6 flags: 00000246 i z p rsp: ffff88001acbdef8 rax: 0000000000000000 rcx: 00000000ffffffff rdx: 0000000000000000 rbx: ffff88001acbc010 rsi: 0140000000000000 rdi: 0000000000000086 rbp: ffff88001acbdef8 r8: 0000000000000000 r9: 0000000000000000 r10: 0000000000000001 r11: 0000000000000000 r12: ffffffff81c62330 r13: 0000000000000000 r14: 0000000000000000 r15: 0000000000000000 cs: 0010 ss: 0018 ds: 0000 es: 0000 fs: 0000 @ 0000000000000000 gs: 0000 @ ffff88001b040000/0000000000000000 Code (instr addr ffffffff810360d6) 48 89 e5 fb c9 c3 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 fb f4 <c9> c3 0f 1f 84 00 00 00 00 00 55 Stack: ffff88001acbdf08 ffffffff81014735 ffff88001acbdf28 ffffffff81014a68 0000000000000001 0000000000000000 ffff88001acbdf48 ffffffff8165824a 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810360d6>] native_safe_halt+0x6 <-- [<ffffffff81014735>] default_idle+0x45 [<ffffffff81014a68>] cpu_idle+0x88 [<ffffffff8165824a>] start_secondary+0x188 rip: ffffffff81034b97 hpet_rtc_interrupt+0x97 flags: 00000086 s nz p rsp: ffff88001b003df8 rax: 00000000bc004a66 rcx: 00000000000ee6b2 rdx: 00000000ba6b145a rbx: 000000000000087d rsi: ffff88001aec5000 rdi: 0000000000000008 rbp: ffff88001b003e68 r8: ffff88001ac06800 r9: ffff88001b003e38 r10: 000000000000008c r11: 000000000000f800 r12: ffff88001ac06884 r13: 0000000000000000 r14: 0000000000000000 r15: 0000000000000008 cs: 0010 ss: 0018 ds: 0000 es: 0000 fs: 0000 @ 0000000000000000 gs: 0000 @ ffff88001b000000/0000000000000000 Code (instr addr ffffffff81034b97) 00 89 10 48 8b 05 74 da d0 00 83 c3 01 48 05 f0 00 00 00 8b 00 <3b> 05 d3 da d0 00 79 c9 85 db 74 Stack: ffff88001b003e68 ffff88001aec5000 0000000000000000 0000000800000000 ffff88001ad49c68 0000000000000000 00000008156570c6 ffffffff8165e9cc ffff88001b0125c0 ffff880019278480 ffff88001ac06884 0000000000000000 0000000000000000 0000000000000008 ffff88001b003eb8 ffffffff8109aa2b Call Trace: [<ffffffff81034b97>] hpet_rtc_interrupt+0x97 <-- [<ffffffff8165e9cc>] _raw_spin_unlock_irqrestore+0xc [<ffffffff8109aa2b>] handle_irq_event_percpu+0x4b [<ffffffff8109ab8c>] handle_irq_event+0x3c [<ffffffff8109d79d>] handle_edge_irq+0x6d [<ffffffff8142b474>] __xen_evtchn_do_upcall+0x1a4 [<ffffffff8142ca6a>] xen_evtchn_do_upcall+0x2a [<ffffffff81660aad>] xen_hvm_callback_vector+0x6d rip: ffffffff810360d6 native_safe_halt+0x6 flags: 00000246 i z p rsp: ffff88001acbdef8 rax: 0000000000000000 rcx: 00000000ffffffff rdx: 0000000000000000 rbx: ffff88001acbc010 rsi: 0140000000000000 rdi: 0000000000000086 rbp: ffff88001acbdef8 r8: 0000000000000000 r9: 0000000000000000 r10: 0000000000000001 r11: 0000000000000000 r12: ffffffff81c62330 r13: 0000000000000000 r14: 0000000000000000 r15: 0000000000000000 cs: 0010 ss: 0018 ds: 0000 es: 0000 fs: 0000 @ 0000000000000000 gs: 0000 @ ffff88001b040000/0000000000000000 Code (instr addr ffffffff810360d6) 48 89 e5 fb c9 c3 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 fb f4 <c9> c3 0f 1f 84 00 00 00 00 00 55 Stack: ffff88001acbdf08 ffffffff81014735 ffff88001acbdf28 ffffffff81014a68 0000000000000001 0000000000000000 ffff88001acbdf48 ffffffff8165824a 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810360d6>] native_safe_halt+0x6 <-- [<ffffffff81014735>] default_idle+0x45 [<ffffffff81014a68>] cpu_idle+0x88 [<ffffffff8165824a>] start_secondary+0x188 rip: ffffffff81034b97 hpet_rtc_interrupt+0x97 flags: 00000086 s nz p rsp: ffff88001b003df8 rax: 00000000bc004a66 rcx: 00000000000ee6b2 rdx: 00000000ba6b145a rbx: 000000000000087d rsi: ffff88001aec5000 rdi: 0000000000000008 rbp: ffff88001b003e68 r8: ffff88001ac06800 r9: ffff88001b003e38 r10: 000000000000008c r11: 000000000000f800 r12: ffff88001ac06884 r13: 0000000000000000 r14: 0000000000000000 r15: 0000000000000008 cs: 0010 ss: 0018 ds: 0000 es: 0000 fs: 0000 @ 0000000000000000 gs: 0000 @ ffff88001b000000/0000000000000000 Code (instr addr ffffffff81034b97) 00 89 10 48 8b 05 74 da d0 00 83 c3 01 48 05 f0 00 00 00 8b 00 <3b> 05 d3 da d0 00 79 c9 85 db 74 Stack: ffff88001b003e68 ffff88001aec5000 0000000000000000 0000000800000000 ffff88001ad49c68 0000000000000000 00000008156570c6 ffffffff8165e9cc ffff88001b0125c0 ffff880019278480 ffff88001ac06884 0000000000000000 0000000000000000 0000000000000008 ffff88001b003eb8 ffffffff8109aa2b Call Trace: [<ffffffff81034b97>] hpet_rtc_interrupt+0x97 <-- [<ffffffff8165e9cc>] _raw_spin_unlock_irqrestore+0xc [<ffffffff8109aa2b>] handle_irq_event_percpu+0x4b [<ffffffff8109ab8c>] handle_irq_event+0x3c [<ffffffff8109d79d>] handle_edge_irq+0x6d [<ffffffff8142b474>] __xen_evtchn_do_upcall+0x1a4 [<ffffffff8142ca6a>] xen_evtchn_do_upcall+0x2a [<ffffffff81660aad>] xen_hvm_callback_vector+0x6d rip: ffffffff810360d6 native_safe_halt+0x6 flags: 00000246 i z p rsp: ffff88001acbdef8 rax: 0000000000000000 rcx: 00000000ffffffff rdx: 0000000000000000 rbx: ffff88001acbc010 rsi: 0140000000000000 rdi: 0000000000000086 rbp: ffff88001acbdef8 r8: 0000000000000000 r9: 0000000000000000 r10: 0000000000000001 r11: 0000000000000000 r12: ffffffff81c62330 r13: 0000000000000000 r14: 0000000000000000 r15: 0000000000000000 cs: 0010 ss: 0018 ds: 0000 es: 0000 fs: 0000 @ 0000000000000000 gs: 0000 @ ffff88001b040000/0000000000000000 Code (instr addr ffffffff810360d6) 48 89 e5 fb c9 c3 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 fb f4 <c9> c3 0f 1f 84 00 00 00 00 00 55 Stack: ffff88001acbdf08 ffffffff81014735 ffff88001acbdf28 ffffffff81014a68 0000000000000001 0000000000000000 ffff88001acbdf48 ffffffff8165824a 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810360d6>] native_safe_halt+0x6 <-- [<ffffffff81014735>] default_idle+0x45 [<ffffffff81014a68>] cpu_idle+0x88 [<ffffffff8165824a>] start_secondary+0x188 rip: ffffffff81034b97 hpet_rtc_interrupt+0x97 flags: 00000086 s nz p rsp: ffff88001b003df8 rax: 00000000bc004a66 rcx: 00000000000ee6b2 rdx: 00000000ba6b145a rbx: 000000000000087d rsi: ffff88001aec5000 rdi: 0000000000000008 rbp: ffff88001b003e68 r8: ffff88001ac06800 r9: ffff88001b003e38 r10: 000000000000008c r11: 000000000000f800 r12: ffff88001ac06884 r13: 0000000000000000 r14: 0000000000000000 r15: 0000000000000008 cs: 0010 ss: 0018 ds: 0000 es: 0000 fs: 0000 @ 0000000000000000 gs: 0000 @ ffff88001b000000/0000000000000000 Code (instr addr ffffffff81034b97) 00 89 10 48 8b 05 74 da d0 00 83 c3 01 48 05 f0 00 00 00 8b 00 <3b> 05 d3 da d0 00 79 c9 85 db 74 Stack: ffff88001b003e68 ffff88001aec5000 0000000000000000 0000000800000000 ffff88001ad49c68 0000000000000000 00000008156570c6 ffffffff8165e9cc ffff88001b0125c0 ffff880019278480 ffff88001ac06884 0000000000000000 0000000000000000 0000000000000008 ffff88001b003eb8 ffffffff8109aa2b Call Trace: [<ffffffff81034b97>] hpet_rtc_interrupt+0x97 <-- [<ffffffff8165e9cc>] _raw_spin_unlock_irqrestore+0xc [<ffffffff8109aa2b>] handle_irq_event_percpu+0x4b [<ffffffff8109ab8c>] handle_irq_event+0x3c [<ffffffff8109d79d>] handle_edge_irq+0x6d [<ffffffff8142b474>] __xen_evtchn_do_upcall+0x1a4 [<ffffffff8142ca6a>] xen_evtchn_do_upcall+0x2a [<ffffffff81660aad>] xen_hvm_callback_vector+0x6d rip: ffffffff810360d6 native_safe_halt+0x6 flags: 00000246 i z p rsp: ffff88001acbdef8 rax: 0000000000000000 rcx: 00000000ffffffff rdx: 0000000000000000 rbx: ffff88001acbc010 rsi: 0140000000000000 rdi: 0000000000000086 rbp: ffff88001acbdef8 r8: 0000000000000000 r9: 0000000000000000 r10: 0000000000000001 r11: 0000000000000000 r12: ffffffff81c62330 r13: 0000000000000000 r14: 0000000000000000 r15: 0000000000000000 cs: 0010 ss: 0018 ds: 0000 es: 0000 fs: 0000 @ 0000000000000000 gs: 0000 @ ffff88001b040000/0000000000000000 Code (instr addr ffffffff810360d6) 48 89 e5 fb c9 c3 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 fb f4 <c9> c3 0f 1f 84 00 00 00 00 00 55 Stack: ffff88001acbdf08 ffffffff81014735 ffff88001acbdf28 ffffffff81014a68 0000000000000001 0000000000000000 ffff88001acbdf48 ffffffff8165824a 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff810360d6>] native_safe_halt+0x6 <-- [<ffffffff81014735>] default_idle+0x45 [<ffffffff81014a68>] cpu_idle+0x88 [<ffffffff8165824a>] start_secondary+0x188 ... 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