Hello,
I''m taking a trace using Xentrace. Everything seems to be ok and I
''m able to
take the trace. Then, seeing the result by xentrace_format, I receive this
error message:
$xentrace_format /etc/xen/formats < ~/Traces/xentrace.dat > ~/Traces/def1
Traceback (most recent call last):
File "./xentrace_format", line 108, in ?
(tsc, event, d1, d2, d3, d4, d5) = struct.unpack(TRCREC, line)
struct.error: unpack str size does not match format
However it gives me a file. And the output is like:
CPU0 1637436031845 (+ 0) do_block [ domid = 0x00000000,
edomid = 0x00000000 ]
CPU0 1637436034822 (+ 2977) unknown (0x000000000002f00e) [ 0x00000000
0x0002f2aa 0x00000000 0x00000000 0x00000000 ]
CPU0 1637436035370 (+ 548) unknown (0x000000000002f00f) [ 0x00007fff
0x0002f2aa 0x01c9c380 0x00000000 0x00000000 ]
......
Am I doing something wrong? What is the problem with the unknown events?
Thanks in advance,
Parissa.
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Parisa, did you execute xentrace_format on a heterogeneous machine? Regards, Hiroya Parisa Heidari wrote:> > Hello, > > I''m taking a trace using Xentrace. Everything seems to be ok and I ''m able to > take the trace. Then, seeing the result by xentrace_format, I receive this > error message: > $xentrace_format /etc/xen/formats < ~/Traces/xentrace.dat > ~/Traces/def1 > Traceback (most recent call last): > File "./xentrace_format", line 108, in ? > (tsc, event, d1, d2, d3, d4, d5) = struct.unpack(TRCREC, line) > struct.error: unpack str size does not match format > > > However it gives me a file. And the output is like: > CPU0 1637436031845 (+ 0) do_block [ domid = 0x00000000, > edomid = 0x00000000 ] > CPU0 1637436034822 (+ 2977) unknown (0x000000000002f00e) [ 0x00000000 > 0x0002f2aa 0x00000000 0x00000000 0x00000000 ] > CPU0 1637436035370 (+ 548) unknown (0x000000000002f00f) [ 0x00007fff > 0x0002f2aa 0x01c9c380 0x00000000 0x00000000 ] > > ...... > > Am I doing something wrong? What is the problem with the unknown events? > > Thanks in advance, > Parissa. > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Hi Hiroya, No, I execute xentrace_forma on the same machine that I''m taking the trace; both of them are being executes on i386. Regards, Parissa. On Monday 16 April 2007 04:31, you wrote:> Parisa, > > did you execute xentrace_format on a heterogeneous machine? > > Regards, > Hiroya > > Parisa Heidari wrote: > > Hello, > > > > I''m taking a trace using Xentrace. Everything seems to be ok and I ''m > > able to take the trace. Then, seeing the result by xentrace_format, I > > receive this error message: > > $xentrace_format /etc/xen/formats < ~/Traces/xentrace.dat > > > ~/Traces/def1 Traceback (most recent call last): > > File "./xentrace_format", line 108, in ? > > (tsc, event, d1, d2, d3, d4, d5) = struct.unpack(TRCREC, line) > > struct.error: unpack str size does not match format > > > > > > However it gives me a file. And the output is like: > > CPU0 1637436031845 (+ 0) do_block [ domid > > 0x00000000, edomid = 0x00000000 ] > > CPU0 1637436034822 (+ 2977) unknown (0x000000000002f00e) [ > > 0x00000000 0x0002f2aa 0x00000000 0x00000000 0x00000000 ] > > CPU0 1637436035370 (+ 548) unknown (0x000000000002f00f) [ > > 0x00007fff 0x0002f2aa 0x01c9c380 0x00000000 0x00000000 ] > > > > ...... > > > > Am I doing something wrong? What is the problem with the unknown events? > > > > Thanks in advance, > > Parissa. > > > > _______________________________________________ > > Xen-devel mailing list > > Xen-devel@lists.xensource.com > > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Hi there, Are you using a customised formats file? Could you possibly make the trace file and the formats file you''re using available online somewhere. I might be able t otake a look at it. Cheers, Mark On Monday 16 April 2007, Parissa Heidari wrote:> Hi Hiroya, > No, I execute xentrace_forma on the same machine that I''m taking the trace; > both of them are being executes on i386. > > Regards, > Parissa. > > On Monday 16 April 2007 04:31, you wrote: > > Parisa, > > > > did you execute xentrace_format on a heterogeneous machine? > > > > Regards, > > Hiroya > > > > Parisa Heidari wrote: > > > Hello, > > > > > > I''m taking a trace using Xentrace. Everything seems to be ok and I ''m > > > able to take the trace. Then, seeing the result by xentrace_format, I > > > receive this error message: > > > $xentrace_format /etc/xen/formats < ~/Traces/xentrace.dat > > > > ~/Traces/def1 Traceback (most recent call last): > > > File "./xentrace_format", line 108, in ? > > > (tsc, event, d1, d2, d3, d4, d5) = struct.unpack(TRCREC, line) > > > struct.error: unpack str size does not match format > > > > > > > > > However it gives me a file. And the output is like: > > > CPU0 1637436031845 (+ 0) do_block [ domid > > > 0x00000000, edomid = 0x00000000 ] > > > CPU0 1637436034822 (+ 2977) unknown (0x000000000002f00e) [ > > > 0x00000000 0x0002f2aa 0x00000000 0x00000000 0x00000000 ] > > > CPU0 1637436035370 (+ 548) unknown (0x000000000002f00f) [ > > > 0x00007fff 0x0002f2aa 0x01c9c380 0x00000000 0x00000000 ] > > > > > > ...... > > > > > > Am I doing something wrong? What is the problem with the unknown > > > events? > > > > > > Thanks in advance, > > > Parissa. > > > > > > _______________________________________________ > > > Xen-devel mailing list > > > Xen-devel@lists.xensource.com > > > http://lists.xensource.com/xen-devel > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel-- Dave: Just a question. What use is a unicyle with no seat? And no pedals! Mark: To answer a question with a question: What use is a skateboard? Dave: Skateboards have wheels. Mark: My wheel has a wheel! _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Hi Mark, You could find the files (formats & xentrace.dat) here: http://ltt.polymtl.ca/~parisa Formas is not customised. As I have written in the "text" file, I''m using xen-unstable and the "formats" found in : xen-unstable.hg/tools/xentrace/formats I really appreciate your help, Parissa. On Tuesday 24 April 2007 12:36, you wrote:> Hi there, > > Are you using a customised formats file? > > Could you possibly make the trace file and the formats file you''re using > available online somewhere. I might be able t otake a look at it. > > Cheers, > Mark > > On Monday 16 April 2007, Parissa Heidari wrote: > > Hi Hiroya, > > No, I execute xentrace_forma on the same machine that I''m taking the > > trace; both of them are being executes on i386. > > > > Regards, > > Parissa. > > > > On Monday 16 April 2007 04:31, you wrote: > > > Parisa, > > > > > > did you execute xentrace_format on a heterogeneous machine? > > > > > > Regards, > > > Hiroya > > > > > > Parisa Heidari wrote: > > > > Hello, > > > > > > > > I''m taking a trace using Xentrace. Everything seems to be ok and I ''m > > > > able to take the trace. Then, seeing the result by xentrace_format, I > > > > receive this error message: > > > > $xentrace_format /etc/xen/formats < ~/Traces/xentrace.dat > > > > > ~/Traces/def1 Traceback (most recent call last): > > > > File "./xentrace_format", line 108, in ? > > > > (tsc, event, d1, d2, d3, d4, d5) = struct.unpack(TRCREC, line) > > > > struct.error: unpack str size does not match format > > > > > > > > > > > > However it gives me a file. And the output is like: > > > > CPU0 1637436031845 (+ 0) do_block [ domid > > > > 0x00000000, edomid = 0x00000000 ] > > > > CPU0 1637436034822 (+ 2977) unknown (0x000000000002f00e) [ > > > > 0x00000000 0x0002f2aa 0x00000000 0x00000000 0x00000000 ] > > > > CPU0 1637436035370 (+ 548) unknown (0x000000000002f00f) [ > > > > 0x00007fff 0x0002f2aa 0x01c9c380 0x00000000 0x00000000 ] > > > > > > > > ...... > > > > > > > > Am I doing something wrong? What is the problem with the unknown > > > > events? > > > > > > > > Thanks in advance, > > > > Parissa. > > > > > > > > _______________________________________________ > > > > Xen-devel mailing list > > > > Xen-devel@lists.xensource.com > > > > http://lists.xensource.com/xen-devel > > > > _______________________________________________ > > Xen-devel mailing list > > Xen-devel@lists.xensource.com > > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On Sun, 2007-04-15 at 14:47 -0400, Parisa Heidari wrote:> $xentrace_format /etc/xen/formats < ~/Traces/xentrace.dat > ~/Traces/def1 > Traceback (most recent call last): > File "./xentrace_format", line 108, in ? > (tsc, event, d1, d2, d3, d4, d5) = struct.unpack(TRCREC, line) > struct.error: unpack str size does not match formatThis happens from time to time. I think the reason is that xentrace writes the trace records in two steps: first the CPU number and second the rest of the trace record. When you interrupt (CTRL-C) xentrace between these two writes then the last trace entry in the file is incomplete. If you need to work around this you might want to pause the VM before stopping xentrace, so you don''t interrupt it at work. But I think it is save to ignore the error.> However it gives me a file. And the output is like: > CPU0 1637436031845 (+ 0) do_block [ domid = 0x00000000, > edomid = 0x00000000 ] > CPU0 1637436034822 (+ 2977) unknown (0x000000000002f00e) [ 0x00000000 > 0x0002f2aa 0x00000000 0x00000000 0x00000000 ] > CPU0 1637436035370 (+ 548) unknown (0x000000000002f00f) [ 0x00007fff > 0x0002f2aa 0x01c9c380 0x00000000 0x00000000 ]These two event IDs (0x2f00e and 0x2f00f) are defined and used in the code since changeset 7801. But there has not been a description added to the formats file yet. Cheers Thomas -- Thomas Friebel Operating System Research Center AMD Saxony, Dresden, Germany -- Legal Stuff: AMD Saxony Limited Liability Company & Co. KG Wilschdorfer Landstr. 101, 01109 Dresden, Germany Register Court Dresden: HRA 4896 General Partner authorized to represent: AMD Saxony LLC (Wilmington, Delaware, US) General Manager of AMD Saxony LLC: Dr. Hans-R. Deppe, Thomas McCoy _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel