Could you send your configuration you used for the simulation?
On Wed, Sep 4, 2013 at 10:47 AM, SF <[email protected]> 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 list > [email protected] > https://www.cs.binghamton.edu/mailman/listinfo/marss86-devel >
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