From: "Pavel Dovgaluk" <Pavel.Dovgaluk@ispras.ru>
To: 'Eduardo Habkost' <ehabkost@redhat.com>,
'Paolo Bonzini' <pbonzini@redhat.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PULL 26/47] cpu-exec: reset exception_index correctly
Date: Tue, 23 Dec 2014 09:55:54 +0300 [thread overview]
Message-ID: <000301d01e7d$806592b0$8130b810$@Dovgaluk@ispras.ru> (raw)
In-Reply-To: <20141219021916.GB9468@thinpad.lan.raisama.net>
> From: Eduardo Habkost [mailto:ehabkost@redhat.com]
> On Mon, Dec 15, 2014 at 05:38:10PM +0100, Paolo Bonzini wrote:
> > From: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
> >
> > Exception index is reset at every entry at every entry into cpu_exec()
> > function. This may cause missing the exceptions while replaying them.
> > This patch moves exception_index reset to the locations where they are
> > processed.
> >
> > Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
> > Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
>
> x86_64-linux-user is broken after applying this patch:
>
> [qemu/(e511b4d...)|BISECTING]$ ./install/bin/qemu-x86_64 /bin/true
> qemu: uncaught target signal 8 (Floating point exception) - core dumped
> Floating point exception (core dumped)
I cannot reproduce this bug.
QEMU runs and terminates correctly.
Can you show me call stack for the exception?
Pavel Dovgalyuk
next prev parent reply other threads:[~2014-12-23 6:56 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-15 16:37 [Qemu-devel] [PULL 00/47] Patches for KVM, x86, SCSI, migration fixes (2014-12-15) Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 01/47] Add bootloader name to multiboot implementation Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 02/47] target-i386: simplify AES emulation Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 03/47] KVM_CAP_IRQFD and KVM_CAP_IRQFD_RESAMPLE checks Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 04/47] vfio: use kvm_resamplefds_enabled() Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 05/47] valgrind: avoid false positives in KVM_GET_DIRTY_LOG ioctl Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 06/47] valgrind/i386: avoid false positives on KVM_SET_CLOCK ioctl Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 07/47] valgrind/i386: avoid false positives on KVM_SET_PIT ioctl Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 08/47] valgrind/i386: avoid false positives on KVM_SET_XCRS ioctl Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 09/47] valgrind/i386: avoid false positives on KVM_SET_MSRS ioctl Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 10/47] valgrind/i386: avoid false positives on KVM_GET_MSRS ioctl Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 11/47] valgrind/i386: avoid false positives on KVM_SET_VCPU_EVENTS ioctl Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 12/47] valgrind/s390x: avoid false positives on KVM_SET_FPU ioctl Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 13/47] coverity/s390x: avoid false positive in kvm_irqchip_add_adapter_route Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 14/47] target-i386: add feature flags for CPUID[EAX=0xd, ECX=1] Paolo Bonzini
2014-12-15 16:37 ` [Qemu-devel] [PULL 15/47] target-mips: kvm: do not use get_clock() Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 16/47] target-i386: get/set/migrate XSAVES state Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 17/47] x86: Drop superfluous conditionals around g_free() Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 18/47] x86: Fuse g_malloc(); memset() into g_malloc0() Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 19/47] x86: Use g_new() & friends where that makes obvious sense Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 20/47] x86: Drop some superfluous casts from void * Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 21/47] scsi: Drop superfluous conditionals around g_free() Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 22/47] scsi: Fuse g_malloc(); memset() into g_malloc0() Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 23/47] scsi: Use g_new() & friends where that makes obvious sense Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 24/47] scsi-disk: provide maximum transfer length Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 25/47] cpu-exec: fix cpu_exec_nocache Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 26/47] cpu-exec: reset exception_index correctly Paolo Bonzini
2014-12-19 2:19 ` Eduardo Habkost
2014-12-23 6:55 ` Pavel Dovgaluk [this message]
[not found] ` <2162.40673694319$1419317788@news.gmane.org>
2014-12-23 8:54 ` Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 27/47] icount: set can_do_io outside TB execution Paolo Bonzini
2014-12-17 8:53 ` Pavel Dovgaluk
2014-12-17 9:19 ` Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 28/47] icount: introduce cpu_get_icount_raw Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 29/47] cpu-exec: invalidate nocache translation if they are interrupted Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 30/47] timer: introduce new QEMU_CLOCK_VIRTUAL_RT clock Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 31/47] cpus: make icount warp behave well with respect to stop/cont Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 32/47] i386: do not cross the pages boundaries in replay mode Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 33/47] pc: add 2.3 machine types Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 34/47] target-i386: add VME to all CPUs Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 35/47] target-i386: add f16c and rdrand to Haswell and Broadwell Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 36/47] target-i386: add Ivy Bridge CPU model Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 37/47] kvm/apic: fix 2.2->2.1 migration Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 38/47] linuxboot: fix loading old kernels Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 39/47] serial: reset thri_pending on IER writes with THRI=0 Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 40/47] serial: clean up THRE/TEMT handling Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 41/47] serial: update LSR on enabling/disabling FIFOs Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 42/47] serial: only resample THR interrupt on rising edge of IER.THRI Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 43/47] sdhci: Set a default frequency clock Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 44/47] sdhci: Remove class "virtual" methods Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 45/47] sdhci: Add "sysbus" to sdhci QOM types and methods Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 46/47] sdhci: Define SDHCI PCI ids Paolo Bonzini
2014-12-15 16:38 ` [Qemu-devel] [PULL 47/47] sdhci: Support SDHCI devices on PCI Paolo Bonzini
2014-12-16 12:33 ` [Qemu-devel] [PULL 00/47] Patches for KVM, x86, SCSI, migration fixes (2014-12-15) Peter Maydell
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