I converted a CUDA application to a normal C program which has a lot of sqrtf and cosf calls. Another related query is, what happens if an instruction is unimplemented?
- Ankit On Wed, Apr 21, 2010 at 2:05 PM, Gabe Black <[email protected]> wrote: > I think that's right. Also, the panic is basically a segfault for the > simulated program. It's complaining you tried to read from address 0x2 > which doesn't correspond to anything in the process's address space. If > you do find a specific bug (or implement a GPU!) please let us know. > There's more information on debugging at > http://www.m5sim.org/wiki/index.php/Debugging_M5 > > Gabe > > Vince Weaver wrote: > > On Wed, 21 Apr 2010, Ankit Sethia wrote: > > > > > >> What steps should i take to debug where the problem lies? When does this > >> panic message show? > >> > > > > x87 floating point support for x86 is incomplete. Your best bet is to > > compile with SSE2 support, as that has much better support. > > > > although you seem to be running a CUDA binary, which I'm pretty sure is > > unlikely to work at all unless you've implemented GPU support inside of > > m5. > > > > Vince > > > > > > > >> M5 Simulator System > >> > >> Copyright (c) 2001-2008 > >> The Regents of The University of Michigan > >> All Rights Reserved > >> > >> > >> M5 compiled Apr 21 2010 11:51:48 > >> M5 revision edde97a6ea7c+ 7069+ default tip > >> M5 started Apr 21 2010 11:55:40 > >> M5 executing on inferno.eecs.umich.edu > >> command line: ./build/X86_SE/m5.opt configs/cuda/runcuda.py -n 1 -b > cudasde > >> Global frequency set at 1000000000000 ticks per second > >> 0: system.remote_gdb.listener: listening for remote gdb #0 on port 7000 > >> info: Entering event queue @ 0. Starting simulation... > >> warn: instruction 'fnstcw_Mw' unimplemented > >> For more information see: http://www.m5sim.org/warn/437d5238 > >> warn: instruction 'fldcw_Mw' unimplemented > >> For more information see: http://www.m5sim.org/warn/437d5238 > >> warn: instruction 'fstp' unimplemented > >> For more information see: http://www.m5sim.org/warn/437d5238 > >> panic: Tried to read unmapped address 0x2. > >> @ cycle 12523000 > >> [translate:build/X86_SE/arch/x86/tlb.cc, line 653] > >> Memory Usage: 281140 KBytes > >> For more information see: http://www.m5sim.org/panic/d71dd0bc > >> Program aborted at cycle 12523000 > >> Aborted > >> > >> > > _______________________________________________ > > m5-users mailing list > > [email protected] > > http://m5sim.org/cgi-bin/mailman/listinfo/m5-users > > > > _______________________________________________ > m5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/m5-users >
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