Brendan Fitzgerald <bfitzge2 <at> binghamton.edu> writes: > > > Could you send your configuration you used for the simulation? > > On Wed, Sep 4, 2013 at 10:47 AM, SF <sfan.nju <at> gmail.com> wrote:[Sorry for duplicate posts -- my previous one was not well formatted.] > Hello all, > I encountered a problem when running an application on my own image disk, as > shown below. I am just using "qemu-system-x86_64 -m 4096 -hda disk.img" with > "simconfig -machine single_core". > 00000000f6efab7d[vcpu 0] thread 0: WARNING: At cycle 30105278, 31826571 user > commits: no instructions have committed for 1048577 cycles; the pipeline > could be deadlocked > qemu-system-x86_64: ptlsim/build/core/ooo-core/ooo.cpp:876: bool > ooo::OooCore::runcycle(void*): Assertion `0' failed. > Aborted > The simulation exits after this error happens. I'd like to figure out why > this error is happening, and if there is any way to solve it in order to > continue my simulation. I found a few people have reported the same error > but there didn't seem to have a clear solution. In this post > (http://comments.gmane.org/gmane.comp.emulators.marss86/448), Avadh > suggested checking the ROB entry. > Here is my log file: http://www.cs.duke.edu/~schfan/test4.log . > In my log file I found this line: > rob 2 uuid 12141238 rip 0x0000f6f46b7d ready-to-load-all <at> all ldd r42 > tr1 ld2 = r119 <at> int r0 <at> int r0 <at> int > This load operation (load the value of r129 to r42?) seems never successes > because quite a few following entries show "wait for rob 2". > And below LSQ (Load-store queue) I found : > ld2 uuid 12141238 rob 2 r42 <at> int < Data Invalid > <at> 0x00010999ed40 > And also something like this: > TH 0 rfid 0 r42 state int-waiting 0xdeadbeefdeadbeef| rob 2 (uuid > 12141238) refcount 3 > My understanding is that r42 keeps waiting for data from r129, which leads > to the "deadlock". But I still don't fully understand the whole process and > I don't know what instruction inside my application is causing this error. > Any suggestion would be appreciated! > Thanks in advance! > SF > _______________________________________________http://www.marss86.org > Marss86-Devel mailing listMarss86-Devel <at> cs.binghamton.eduhttps://www.cs.binghamton.edu/mailman/listinfo/marss86- devel > > > > > > > <div> > <div dir="ltr">Could you send your configuration you used for the simulation?</div> > <div class="gmail_extra"> > <br><br><div class="gmail_quote">On Wed, Sep 4, 2013 at 10:47 AM, SF <span dir="ltr"><<a href="mailto:sfan.nju <at> gmail.com" target="_blank">sfan.nju <at> gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote">[Sorry for duplicate posts -- my previous one was not well formatted.]<br><br> > Hello all,<br><br> > I encountered a problem when running an application on my own image disk, as<br> > shown below. I am just using "qemu-system-x86_64 -m 4096 -hda disk.img" with<br> > "simconfig -machine single_core".<br><br> > 00000000f6efab7d[vcpu 0] thread 0: WARNING: At cycle 30105278, 31826571 user<br> > commits: no instructions have committed for 1048577 cycles; the pipeline<br> > could be deadlocked<br> > qemu-system-x86_64: ptlsim/build/core/ooo-core/ooo.cpp:876: bool<br> > ooo::OooCore::runcycle(void*): Assertion `0' failed.<br> > Aborted<br><br> > The simulation exits after this error happens. I'd like to figure out why<br> > this error is happening, and if there is any way to solve it in order to<br> > continue my simulation. I found a few people have reported the same error<br> > but there didn't seem to have a clear solution. In this post<br> > (<a href="http://comments.gmane.org/gmane.comp.emulators.marss86/448"; target="_blank">http://comments.gmane.org/gmane.comp.emulators.marss86/448</ a>), Avadh<br> > suggested checking the ROB entry.<br><br> > Here is my log file: <a href="http://www.cs.duke.edu/~schfan/test4.log"; target="_blank">http://www.cs.duke.edu/~schfan/test4.log</a> .<br><br> > In my log file I found this line:<br><br> > rob 2 uuid 12141238 rip 0x0000f6f46b7d ready-to-load-all <at> all ldd r42<br> > tr1 ld2 = r119 <at> int r0 <at> int r0 <at> int<br><br> > This load operation (load the value of r129 to r42?) seems never successes<br> > because quite a few following entries show "wait for rob 2".<br><br> > And below LSQ (Load-store queue) I found :<br><br> > ld2 uuid 12141238 rob 2 r42 <at> int < Data Invalid > <at> 0x00010999ed40<br><br> > And also something like this:<br><br> > TH 0 rfid 0 r42 state int-waiting 0xdeadbeefdeadbeef| rob 2 (uuid<br> > 12141238) refcount 3<br><br><br> > My understanding is that r42 keeps waiting for data from r129, which leads<br> > to the "deadlock". But I still don't fully understand the whole process and<br> > I don't know what instruction inside my application is causing this error. <br><br> > Any suggestion would be appreciated!<br><br> > Thanks in advance!<br> > SF<br><br><br> > _______________________________________________<br><a href="http://www.marss86.org"; target="_blank">http://www.marss86.org</a><br> > Marss86-Devel mailing list<br><a href="mailto:Marss86-Devel <at> cs.binghamton.edu">Marss86-Devel <at> cs.binghamton.edu</a><br><a href="https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel"; target="_blank">https://www.cs.binghamton.edu/mailman/listinfo/marss86- devel</a><br> > </blockquote> > </div> > <br> > </div> > </div> >
Thank you for your prompt reply! I just used the default configuration file to compile qemu. $ scons -Q debug=2 c=1 And I ran qemu like this: $ ./qemu/qemu-system-x86_64 -m 4096 -usbdevice mouse -usbdevice keyboard - hda disk.img And in the qemu window I typed: simconfig -machine single_core -corefreq 2G simconfig -loglevel 99 -logfile test4.log Thanks! SF _______________________________________________ http://www.marss86.org Marss86-Devel mailing list [email protected] https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel
