Re: [Qemu-devel] TSC in qem[-kvm] 1.1+ and in-kernel irqchip

2012-08-13 Thread Jan Kiszka
On 2012-08-13 15:16, Michael Tokarev wrote: > On 13.08.2012 17:07, Jan Kiszka wrote: > [] >>> The bisecion leads to this commit: >>> >>> commit 17ee47418e65b1593defb30edbab33ccd47fc1f8 >>> Merge: 13b0496 5d17c0d >>> Author: Jan Kiszka >>> Date: Tue Apr 10 16:26:23 2012 +0200 >>> >>> Merge co

Re: [Qemu-devel] TSC in qem[-kvm] 1.1+ and in-kernel irqchip

2012-08-13 Thread Michael Tokarev
On 13.08.2012 17:07, Jan Kiszka wrote: [] >> The bisecion leads to this commit: >> >> commit 17ee47418e65b1593defb30edbab33ccd47fc1f8 >> Merge: 13b0496 5d17c0d >> Author: Jan Kiszka >> Date: Tue Apr 10 16:26:23 2012 +0200 >> >> Merge commit '5d17c0d2df4998598e6002b27b8e47e792899a0f' into >>

Re: [Qemu-devel] TSC in qem[-kvm] 1.1+ and in-kernel irqchip

2012-08-13 Thread Jan Kiszka
On 2012-08-12 11:24, Michael Tokarev wrote: > On 12.08.2012 12:10, Gleb Natapov wrote: > [] >> Any chance to bisect it? > > The bisecion leads to this commit: > > commit 17ee47418e65b1593defb30edbab33ccd47fc1f8 > Merge: 13b0496 5d17c0d > Author: Jan Kiszka > Date: Tue Apr 10 16:26:23 2012 +020

Re: [Qemu-devel] TSC in qem[-kvm] 1.1+ and in-kernel irqchip

2012-08-12 Thread Michael Tokarev
On 12.08.2012 12:10, Gleb Natapov wrote: [] > Any chance to bisect it? The bisecion leads to this commit: commit 17ee47418e65b1593defb30edbab33ccd47fc1f8 Merge: 13b0496 5d17c0d Author: Jan Kiszka Date: Tue Apr 10 16:26:23 2012 +0200 Merge commit '5d17c0d2df4998598e6002b27b8e47e792899a0f'

Re: [Qemu-devel] TSC in qem[-kvm] 1.1+ and in-kernel irqchip

2012-08-12 Thread Gleb Natapov
On Fri, Aug 10, 2012 at 01:24:06PM +0400, Michael Tokarev wrote: > On 10.08.2012 11:33, Gleb Natapov wrote: > > On Thu, Aug 09, 2012 at 10:27:43PM +0400, Michael Tokarev wrote: > >> As a follow-up to the patch "tsc: use kvmclock for > >> calibration". > >> > >> There's another problem reported by s

Re: [Qemu-devel] TSC in qem[-kvm] 1.1+ and in-kernel irqchip

2012-08-10 Thread Michael Tokarev
On 10.08.2012 11:33, Gleb Natapov wrote: > On Thu, Aug 09, 2012 at 10:27:43PM +0400, Michael Tokarev wrote: >> As a follow-up to the patch "tsc: use kvmclock for >> calibration". >> >> There's another problem reported by several users. >> The sympthom is that grub does not show boot menu, >> it boo

Re: [Qemu-devel] TSC in qem[-kvm] 1.1+ and in-kernel irqchip

2012-08-10 Thread Gleb Natapov
On Thu, Aug 09, 2012 at 10:27:43PM +0400, Michael Tokarev wrote: > As a follow-up to the patch "tsc: use kvmclock for > calibration". > > There's another problem reported by several users. > The sympthom is that grub does not show boot menu, > it boots default entry right away without any pause. >

Re: [Qemu-devel] TSC in qem[-kvm] 1.1+ and in-kernel irqchip

2012-08-09 Thread Michael Tokarev
On 10.08.2012 00:47, Marcelo Tosatti wrote: [] >>> calibrate_tsc (void) >>> { >>> /* First calibrate the TSC rate (relative, not absolute time). */ >>> grub_uint64_t start_tsc; >>> grub_uint64_t end_tsc; >>> >>> start_tsc = grub_get_tsc (); >>> grub_pit_wait (0x); >>> end_tsc = grub

Re: [Qemu-devel] TSC in qem[-kvm] 1.1+ and in-kernel irqchip

2012-08-09 Thread Marcelo Tosatti
On Thu, Aug 09, 2012 at 10:27:43PM +0400, Michael Tokarev wrote: > As a follow-up to the patch "tsc: use kvmclock for > calibration". > > There's another problem reported by several users. > The sympthom is that grub does not show boot menu, > it boots default entry right away without any pause. >

[Qemu-devel] TSC in qem[-kvm] 1.1+ and in-kernel irqchip

2012-08-09 Thread Michael Tokarev
As a follow-up to the patch "tsc: use kvmclock for calibration". There's another problem reported by several users. The sympthom is that grub does not show boot menu, it boots default entry right away without any pause. After quite some debugging it turned out to be TSC issue. Grub uses tsc for