> -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > Mark Hatle > Sent: Friday, 9 September 2011 11:58 PM > To: [email protected] > Subject: Re: [OE-core] Problem with new image-prelink > > Which architecture? > > I know of a few issues on MIPS, but they should simply prevent prelinking > instead of causing problems. > > Also, can you check your log.do_rootfs for the failed image. Look for any > prelinker warnings or errors. (Easiest way is to search for "prelink". There > should be two hits, one that says "Size before prelinking: ..." and one that > says "Size after prelinking: ..." between that would be any prelinker > messages.) > > --Mark > > On 9/8/11 10:34 PM, James Limbouris wrote: > > Hi, > > > > After the new version of prelink was committed, I started experiencing > > segmentation faults in a large Qt app on my prelinked image. > > They go away when image-prelink is disabled, or the single binary is > > reinstalled with opkg. I am using eglibc 2.12 and gcc 4.5. Is anyone > > else having trouble? > > > > Strace shows the binary gets through a lot of library loads. Here is the > > tail > > end before the crash: > > > > open("/usr/lib/libQtDBusE.so.4", O_RDONLY) = 3 > > read(3, > "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\274n\1D4\0\0\0"..., 512) = > 512 > > fstat64(3, {st_mode=S_IFREG|0755, st_size=499692, ...}) = 0 > > mmap2(0x44000000, 497232, PROT_READ|PROT_EXEC, > MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x44000000 > > mmap2(0x44078000, 8192, PROT_READ|PROT_WRITE, > MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x78) = 0x44078000 > > close(3) = 0 > > open("/usr/lib/libpng12.so.0", O_RDONLY) = 3 > > read(3, > "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\370\266\215A4\0\0\0"..., > 512) = 512 > > fstat64(3, {st_mode=S_IFREG|0755, st_size=130844, ...}) = 0 > > mmap2(0x418d8000, 160984, PROT_READ|PROT_EXEC, > MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x418d8000 > > mprotect(0x418f8000, 28672, PROT_NONE) = 0 > > mmap2(0x418ff000, 4096, PROT_READ|PROT_WRITE, > MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1f) = 0x418ff000 > > close(3) = 0 > > open("/usr/lib/libfreetype.so.6", O_RDONLY) = 3 > > read(3, > "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\310\366\5B4\0\0\0"..., 512) > = 512 > > fstat64(3, {st_mode=S_IFREG|0755, st_size=458292, ...}) = 0 > > mmap2(0x42058000, 488488, PROT_READ|PROT_EXEC, > MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x42058000 > > mprotect(0x420c5000, 28672, PROT_NONE) = 0 > > mmap2(0x420cc000, 16384, PROT_READ|PROT_WRITE, > MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6c) = 0x420cc000 > > close(3) = 0 > > open("/usr/lib/libQtXmlE.so.4", O_RDONLY) = 3 > > read(3, > "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\364,\20B4\0\0\0"..., 512) = > 512 > > fstat64(3, {st_mode=S_IFREG|0755, st_size=268336, ...}) = 0 > > mmap2(NULL, 4096, PROT_READ|PROT_WRITE, > MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40007000 > > mmap2(0x420f0000, 297992, PROT_READ|PROT_EXEC, > MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x420f0000 > > mprotect(0x42130000, 28672, PROT_NONE) = 0 > > mmap2(0x42137000, 8192, PROT_READ|PROT_WRITE, > MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3f) = 0x42137000 > > close(3) = 0 > > mmap2(NULL, 4096, PROT_READ|PROT_WRITE, > MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40008000 > > set_tls(0x40008860, 0x40008f48, 0x415a4048, 0x40008860, 0x415a4048) = 0 > > mprotect(0x416f3000, 4096, PROT_READ) = 0 > > mprotect(0x41c29000, 12288, PROT_READ) = 0 > > mprotect(0x416cd000, 8192, PROT_READ) = 0 > > mprotect(0x417d1000, 4096, PROT_READ) = 0 > > mprotect(0x417e5000, 4096, PROT_READ) = 0 > > mprotect(0x4179d000, 4096, PROT_READ) = 0 > > mprotect(0x415a3000, 4096, PROT_READ) = 0 > > munmap(0x40001000, 5103) = 0 > > set_tid_address(0x40008408) = 1235 > > set_robust_list(0x40008410, 0xc) = 0 > > rt_sigaction(SIGRTMIN, {0x416dc084, [], SA_SIGINFO|0x4000000}, NULL, 8) = > 0 > > rt_sigaction(SIGRT_1, {0x416dbf28, [], SA_RESTART|SA_SIGINFO|0x4000000}, > NULL, 8) = 0 > > rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 > > getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = > 0 > > brk(0) = 0x1c5000 > > brk(0x1e6000) = 0x1e6000 > > open("/proc/self/auxv", O_RDONLY) = 3 > > read(3, "\20\0\0\0\227\1\0\0", 8) = 8 > > close(3) = 0 > > sched_getparam(1235, { 0 }) = 0 > > sched_getscheduler(1235) = 0 (SCHED_OTHER) > > clock_getres(CLOCK_MONOTONIC, {0, 1}) = 0 > > sched_get_priority_min(SCHED_OTHER) = 0 > > sched_get_priority_max(SCHED_OTHER) = 0 > > sched_get_priority_max(SCHED_OTHER) = 0 > > gettimeofday({1315537291, 101290}, NULL) = 0 > > --- SIGSEGV (Segmentation fault) @ 0 (0) --- > > +++ killed by SIGSEGV +++ > > Segmentation fault > > > > > > It should have continued with: > > > > > > open("/usr/lib/charset.alias", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No > such file or directory) > > open("/usr/share/locale/locale.alias", O_RDONLY|O_LARGEFILE) = -1 > ENOENT (No such file or directory) > > clock_gettime(CLOCK_MONOTONIC, {645, 655570927}) = 0 > > futex(0x417d20a4, FUTEX_WAKE_PRIVATE, 2147483647) = 0 > > uname({sys="Linux", node="192.168.1.14", ...}) = 0 > > socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3 > > connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 > ENOENT (No such file or directory) > > close(3) = 0 > > socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3 > > connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 > ENOENT (No such file or directory) > > close(3) = 0 > > open("/etc/nsswitch.conf", O_RDONLY) = 3 > > fstat64(3, {st_mode=S_IFREG|0644, st_size=465, ...}) = 0 > > mmap2(NULL, 4096, PROT_READ|PROT_WRITE, > MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40001000 > > read(3, "# /etc/nsswitch.conf\n#\n# Example"..., 4096) = 465 > > read(3, "", 4096) = 0 > > close(3) = 0 > > munmap(0x40001000, 4096) = 0 > > open("/etc/ld.so.cache", O_RDONLY) = 3 > > fstat64(3, {st_mode=S_IFREG|0644, st_size=5103, ...}) = 0 > > mmap2(NULL, 5103, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40001000 > > close(3) = 0 > > open("/lib/libnss_compat.so.2", O_RDONLY) = 3 > > read(3, > "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0T\r\0\0004\0\0\0"..., 512) = > 512 > > fstat64(3, {st_mode=S_IFREG|0755, st_size=26368, ...}) = 0 > > mmap2(NULL, 57952, PROT_READ|PROT_EXEC, > MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40009000 > > mprotect(0x4000f000, 28672, PROT_NONE) = 0 > > mmap2(0x40016000, 8192, PROT_READ|PROT_WRITE, > MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5) = 0x40016000 > > close(3) > > ..... > > > > I think the gettimeofday() before the crash is the end of the loading > > process. > > None of the other binaries on the system are doing this - even demos from > > qt4-embedded-demos. The only salient feature of this particular binary is > > its large resource section, weighing it in at 1.4 MB. > > > > I'm rebuilding now with eglibc 2.13 and gcc 4.6. Will report the results. > > > > Regards, > > James Limbouris
Hi Mark, The host is a 32 bit only i686, and the target is an armv5te. There are no prelinker errors in the log, and I get the same results with gcc 4.6 and eglibc 2.13. I've also tried installing prelink on the target, but it seems broken: root@192:~# opkg install prelink Installing prelink (1.0+git1+964f6eba613bf1c791a2a0b858cd044f05e2f151-r6) to root... Downloading http://192.168.1.11/oe-repo/armv5te/prelink_1.0+git1+964f6eba613bf1c791a2a0b858cd044f05e2f151-r6_armv5te.ipk. Installing elfutils (0.148-r3) to root... Downloading http://192.168.1.11/oe-repo/armv5te/elfutils_0.148-r3_armv5te.ipk. Configuring elfutils. Configuring prelink. [ 1680.130000] Alignment trap: prelink-rtld (1410) PC=0x45891990 Instr=0xe5922024 Address=0x00000025 FSR 0x001 prelink: /usr/bin/eu-objdump: Recorded 6 dependencies, now seeing -1 [ 1680.210000] Alignment trap: prelink-rtld (1411) PC=0x45891990 Instr=0xe5922024 Address=0x00000025 FSR 0x001 prelink: /usr/sbin/prelink: Recorded 4 dependencies, now seeing -1 [ 1680.280000] Alignment trap: prelink-rtld (1412) PC=0x45891990 Instr=0xe5922024 Address=0x00000025 FSR 0x001 prelink: /usr/bin/execstack: Recorded 4 dependencies, now seeing -1 [ 1680.360000] Alignment trap: prelink-rtld (1413) PC=0x45891990 Instr=0xe5922024 Address=0x00000025 FSR 0x001 prelink: /usr/bin/eu-strings: Recorded 4 dependencies, now seeing -1 [ 1680.430000] Alignment trap: prelink-rtld (1414) PC=0x45891990 Instr=0xe5922024 Address=0x00000025 FSR 0x001 prelink: /usr/bin/eu-elflint: Recorded 5 dependencies, now seeing -1 [ 1680.510000] Alignment trap: prelink-rtld (1415) PC=0x45891990 Instr=0xe5922024 Address=0x00000025 FSR 0x001 prelink: /usr/bin/eu-findtextrel: Recorded 8 dependencies, now seeing -1 [ 1680.580000] Alignment trap: prelink-rtld (1416) PC=0x45891990 Instr=0xe5922024 Address=0x00000025 FSR 0x001 prelink: /usr/bin/eu-elfcmp: Recorded 5 dependencies, now seeing -1 [ 1680.660000] Alignment trap: prelink-rtld (1417) PC=0x45891990 Instr=0xe5922024 Address=0x00000025 FSR 0x001 prelink: /usr/bin/eu-ranlib: Recorded 4 dependencies, now seeing -1 [ 1680.730000] Alignment trap: prelink-rtld (1418) PC=0x45891990 Instr=0xe5922024 Address=0x00000025 FSR 0x001 prelink: /usr/bin/eu-ar: Recorded 4 dependencies, now seeing -1 [ 1680.810000] Alignment trap: prelink-rtld (1419) PC=0x45891990 Instr=0xe5922024 Address=0x00000025 FSR 0x001 prelink: /usr/bin/eu-unstrip: Recorded 8 dependencies, now seeing -1 [ 1680.890000] Alignment trap: prelink-rtld (1420) PC=0x45891990 Instr=0xe5922024 Address=0x00000025 FSR 0x001 prelink: /usr/bin/rica5: Recorded 27 dependencies, now seeing -1 /usr/bin/rica5 above is the binary that segfaults when prelinked on the host. In the above, I first reinstalled it from an opkg, so that it would be unprelinked, hence the prelinking attempt above. root@192:~# prelink -a [ 1768.720000] Alignment trap: prelink-rtld (1422) PC=0x45891990 Instr=0xe5922024 Address=0x00000025 FSR 0x001 prelink: /sbin/halt.sysvinit: Dependency tracing failed .... the same message and alignment trap are printed for 115 other binaries. Regards, James Limbouris _______________________________________________ Openembedded-core mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
