On Mon, Apr 12, 2021 at 03:07:59PM +0200, Gerd Hoffmann wrote:
> On Fri, Apr 09, 2021 at 02:17:13PM +0100, Daniel P. Berrangé wrote:
> > On Fri, Apr 09, 2021 at 03:12:45PM +0200, Gerd Hoffmann wrote:
> > > Hi,
> > >
> > > > eg a trace point "dma_map_wait" gets mapped to probes in many
> > > > .s
On Fri, Apr 09, 2021 at 02:17:13PM +0100, Daniel P. Berrangé wrote:
> On Fri, Apr 09, 2021 at 03:12:45PM +0200, Gerd Hoffmann wrote:
> > Hi,
> >
> > > eg a trace point "dma_map_wait" gets mapped to probes in many
> > > .stp files, once per target, because we need to match based on
> > > the exec
On Fri, Apr 09, 2021 at 03:12:45PM +0200, Gerd Hoffmann wrote:
> Hi,
>
> > eg a trace point "dma_map_wait" gets mapped to probes in many
> > .stp files, once per target, because we need to match based on
> > the executable path:
> >
> > probe qemu.system.x86_64.dma_map_wait =
> > process("/u
Hi,
> eg a trace point "dma_map_wait" gets mapped to probes in many
> .stp files, once per target, because we need to match based on
> the executable path:
>
> probe qemu.system.x86_64.dma_map_wait =
> process("/usr/libexec/qemu-system-x86_64").mark("dma_map_wait")
So, that changes with mod
Hi,
> > semantic error: unresolved function pid: identifier 'pid' at
> > /home/kraxel/qemu-install/share/systemtap/tapset/qemu-system-x86_64-log.stp:5451:41
> > source: printf("%d@%d qxl_soft_reset %d\n", pid(),
> > gettimeofday_ns(), qid)
> Hmm, strange, makes me think we have a
Hi,
> > Well, "make install" with --prefix=$HOME/qemu-install fixed that for the
> > time
> > being.
> >
> > Now I have this:
> >
> > kraxel@sirius ~/qemu-install/bin# sudo ./qemu-trace-stap -v run
> > ./qemu-system-x86_64 "qxl_soft_reset"
> > Using tapset dir '/home/kraxel/qemu-install/shar
On Mon, Mar 22, 2021 at 11:46:55AM +, Daniel P. Berrangé wrote:
> On Mon, Mar 22, 2021 at 11:36:39AM +, Stefan Hajnoczi wrote:
> > On Mon, Feb 22, 2021 at 04:13:32PM +0100, Gerd Hoffmann wrote:
> > > Hi,
> > >
> > > > > TODO:
> > > > > Enabling modular tracepoints via -trace cmd line doe
On Mon, Mar 29, 2021 at 11:48:18AM +0200, Gerd Hoffmann wrote:
> On Mon, Mar 29, 2021 at 10:23:42AM +0100, Daniel P. Berrangé wrote:
> > On Fri, Mar 26, 2021 at 01:47:00PM +0100, Gerd Hoffmann wrote:
> > > Hi,
> > >
> > > > eg a trace point "dma_map_wait" gets mapped to probes in many
> > > > .s
On Mon, Mar 29, 2021 at 10:23:42AM +0100, Daniel P. Berrangé wrote:
> On Fri, Mar 26, 2021 at 01:47:00PM +0100, Gerd Hoffmann wrote:
> > Hi,
> >
> > > eg a trace point "dma_map_wait" gets mapped to probes in many
> > > .stp files, once per target, because we need to match based on
> > > the exec
On Fri, Mar 26, 2021 at 01:47:00PM +0100, Gerd Hoffmann wrote:
> Hi,
>
> > eg a trace point "dma_map_wait" gets mapped to probes in many
> > .stp files, once per target, because we need to match based on
> > the executable path:
> >
> > probe qemu.system.x86_64.dma_map_wait =
> > process("/u
Hi,
> eg a trace point "dma_map_wait" gets mapped to probes in many
> .stp files, once per target, because we need to match based on
> the executable path:
>
> probe qemu.system.x86_64.dma_map_wait =
> process("/usr/libexec/qemu-system-x86_64").mark("dma_map_wait")
> probe qemu.system.x86_
On Mon, Feb 22, 2021 at 04:13:32PM +0100, Gerd Hoffmann wrote:
> Hi,
>
> > > TODO:
> > > Enabling modular tracepoints via -trace cmd line doesn't work yet.
> > > Guess we need to store the list somewhere for later re-processing.
> > > Error handling is tricky, specifically the "tracepoint doesn'
On Mon, Mar 22, 2021 at 11:36:39AM +, Stefan Hajnoczi wrote:
> On Mon, Feb 22, 2021 at 04:13:32PM +0100, Gerd Hoffmann wrote:
> > Hi,
> >
> > > > TODO:
> > > > Enabling modular tracepoints via -trace cmd line doesn't work yet.
> > > > Guess we need to store the list somewhere for later re-pr
On Mon, Feb 22, 2021 at 04:13:32PM +0100, Gerd Hoffmann wrote:
> Hi,
>
> > > TODO:
> > > Enabling modular tracepoints via -trace cmd line doesn't work yet.
> > > Guess we need to store the list somewhere for later re-processing.
> > > Error handling is tricky, specifically the "tracepoint doesn'
Hi,
> > TODO:
> > Enabling modular tracepoints via -trace cmd line doesn't work yet.
> > Guess we need to store the list somewhere for later re-processing.
> > Error handling is tricky, specifically the "tracepoint doesn't exist"
> > error. Suggestions / ideas are welcome.
>
> Two ideas:
>
>
On Thu, Jan 21, 2021 at 01:50:20PM +0100, Gerd Hoffmann wrote:
> First version that actually works. Only qxl covered for this RfC,
> other modules will follow once the basics are hashed out.
>
> v3:
> - handle initialization of modular tracepoints.
Cool, this looks promising!
> TODO:
> Enablin
First version that actually works. Only qxl covered for this RfC,
other modules will follow once the basics are hashed out.
v3:
- handle initialization of modular tracepoints.
TODO:
Enabling modular tracepoints via -trace cmd line doesn't work yet.
Guess we need to store the list somewhere for
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