Greetings! Forwarded from a conversation between Andreas and me. Suggestions most welcome.
Take care, ============================================================================= Hi, I need to admit: ugh. I'm by far not an porter enough for this, but please send your results to [email protected]. I'm happy to provide hardware data (mayer and rem are swarm machines, phrixos is loongson 2f), and let other people access the machines here if helpful. I probably could also arrange access to an swarm-class mipsel machine. Andi * Camm Maguire ([email protected]) [100730 17:55]: > Greetings! > > Regarding > > > https://buildd.debian.org/fetch.cgi?pkg=axiom&arch=mipsel&ver=20100701-1&stamp=1280388149&file=log&as=raw > > The gcl was built on phrixos, and I just successfully compiled axiom > the package there using this same gcl binary package. There seems to > be some skew between the mipsel machines, and I think it involves > sigaction. > > You still have the bad -60 binary built on some other mipsel machine > installed on phrixos. This segfaults on startup, in the following > routine: > > void > memory_protect(int on) { > > unsigned long i,beg,end= ((unsigned long)(((unsigned long)(((char > *)(core_end))-0x0)>>14))); > int writable=1; > extern void install_segmentation_catcher(void); > > if (first_protectable_page==0) { > for (i=page_multiple; i< maxpage ; i++) > if (type_map[i]!=t_other) > break; > else { > > > sgc_type_map[i] = 4; > } > first_protectable_page= ((i) - (i % page_multiple)); > } > if(page_multiple > 1) > fix_for_page_multiple(first_protectable_page,end); > > if (on==0) {sgc_mprotect((first_protectable_page), > (end - first_protectable_page), (4 | 1)); > install_segmentation_catcher(); > return; > } > > > > > > do {static struct sigaction action; action.__sigaction_handler.sa_handler = > (void *)memprotect_handler; action.sa_flags = 0x10000000|0x00000008; > sigemptyset(&action.sa_mask); sigaddset(&action.sa_mask,2); > sigaddset(&action.sa_mask,14); sigaction(11,&action,0); > sigaction(10,&action,0);} while (0); > beg=first_protectable_page; > writable = (((unsigned long)beg<(128*1024*(4>>2)/(1<<(14 -12)))) && > (sgc_type_map[beg] & (4 | 1))); > for (i=beg ; ++i<= end; ) { > int wri = (((unsigned long)i<(128*1024*(4>>2)/(1<<(14 -12)))) && > (sgc_type_map[i] & (4 | 1))); > if ((wri==0 && writable) > || (writable ==0 && wri) > || i == end) { > > if (writable) > make_writable(beg,i); > else > sgc_mprotect(beg,i-beg,writable); > writable = wri; > beg = i; > } > } > } > > > with the following strace: > > lstat64("/usr/lib/gcl-2.6.7/unixport/saved_gcl", {st_mode=S_IFREG|0755, > st_size=9231344, ...}) = 0 > personality(0xffffffff /* PER_??? */) = 0 > rt_sigaction(SIGSEGV, {0x18000008, [RT_68 RT_71 RT_75 RT_80 RT_81 RT_85 RT_86 > RT_87 RT_88 RT_90 RT_92 RT_94], SA_SIGINFO|0x422fe4}, NULL, 16) = 0 > getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0 > getrlimit(RLIMIT_DATA, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0 > --- SIGSEGV (Segmentation fault) @ 0 (0) --- > rt_sigaction(SIGSEGV, {0x18000008, [RT_69 RT_72 RT_75 RT_76 RT_82 RT_84 RT_85 > RT_86 RT_88 RT_89 RT_90 RT_91 RT_92 RT_93 RT_94], SA_SIGINFO|0x422fe4}, NULL, > 16) = 0 > --- SIGSEGV (Segmentation fault) @ 0 (0) --- > +++ killed by SIGSEGV +++ > Segmentation fault > > The working -62 binary, built on and installed in my home on phrixos, > has the following strace: > > personality(0xffffffff /* PER_??? */) = 0 > rt_sigaction(SIGSEGV, {0x18000008, [RT_68 RT_71 RT_75 RT_80 RT_81 RT_85 RT_86 > RT_87 RT_88 RT_90 RT_92 RT_94], SA_SIGINFO|0x422fe4}, NULL, 16) = 0 > getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0 > getrlimit(RLIMIT_DATA, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0 > mprotect(0xab8000, 1949696, PROT_READ|PROT_WRITE|PROT_EXEC) = 0 > rt_sigaction(SIGSEGV, {0x18000008, [RT_67 RT_68 RT_70 RT_71 RT_72 RT_74 RT_76 > RT_77 RT_78 RT_80 RT_83 RT_84 RT_86 RT_87], SA_SIGINFO|0x422fe4}, NULL, 16) = > 0 > getrlimit(RLIMIT_DATA, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0 > sigaltstatck({ss_sp=0x6cbe98, ss_flags=0, ss_size=2097152}, NULL) = 0 > > The only thing I can spot is the RT_ flag difference in the second > sigaction call. But both these faults occur inside of sigaction (it > appears), so my working guess is that the c libraries are binary > incompatible across some of the the mipsel buildds. > > I would need access to two different machines to be able to compile > with debugging on for further info. But I hope the above is enough. > > Take care, > > Andreas Barth <[email protected]> writes: > > > * Camm Maguire ([email protected]) [100719 18:20]: > >> Greetings! Is is possible the sigaction semantics have changed on > >> mipsel recently, and that rem might be running in an older > >> compatibility mode? > >> > >> I've rebuilt gcl from the same -60 source on phrixous, and all appears > >> flawless. The older binary appears to be faulting on starup around an > >> attempted sigaction trap of SIGSEGV and SIGBUS (no debugging symbols). > >> Any way I can replace the -60 mipsel deb in the archive without > >> forcing a rebuild everywhere else? > > > > You can upload an +b1-package built by hand. Alternativly, if it can > > build automatically, I can schedule an binNMU. > > > > > > Andi > > > > > > > > > > -- > Camm Maguire [email protected] > ========================================================================== > "The earth is but one country, and mankind its citizens." -- Baha'u'llah > ============================================================================= -- Camm Maguire [email protected] ========================================================================== "The earth is but one country, and mankind its citizens." -- Baha'u'llah -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
