On Tue, Apr 12, 2011 at 10:11:16PM -0400, A E [Gmail] wrote: > Hi Brian, > This is what I see [Notice the bold bit, which says, Signal 10, Bus Error] > *Program terminated with signal 10, Bus error.* Yes, this would be SIGBUS. It's an unaligned access, which means that the software in question is buggy[0]. In C and C++, code which would result in unaligned accesses is forbidden by the relevant language standard. In contrast to the situation on some other processors, Linux for SPARC does not have a way to automatically fix up unaligned accesses, so the software has to be fixed. > #0 aes_encrypt (plaintext=0xcdcd0, exp_key=0xcdcfc) at > crypto/cipher/aes.c:1916 > 1916 v128_xor_eq(plaintext, exp_key + 0); I expect that this uses some sort of vector operations but the data is not properly aligned. Since all UltraSPARC machines support VIS 1 and you're compiling for UltraSPARC (either explicitly or implicitly with the Debian defaults), GCC may be using them even if you haven't explicitly specified to do so. I'm not very familiar with the intricacies of SPARC assembly, so I can't really tell you more. [0] Strictly, it could be instead that at that immediate moment you pulled your hard drive (or some other essential system component, like memory) out of the system, but I presume you would have mentioned that if it were the case. -- brian m. carlson / brian with sandals: Houston, Texas, US +1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only OpenPGP: RSA v4 4096b: 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187
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