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charset="us-ascii" Content-Disposition: inline On Fri, Mar 18, 2016 at 04:55:26PM +0100, Alexander Graf wrote: > > > On 18.03.16 16:49, Yury Norov wrote: > > On Fri, Mar 18, 2016 at 06:28:29PM +0800, Zhangjian (Bamvor) wrote: > >> > >> For the glibc part, I found that there are 11 patches of ilp32 in top, > >> but the original 28 patches of ilp32 is not in the top, there are more > >> than 900 patches between them(referece the list below). Are you > >> willing rebase all the ilp32 relative patches. It is very useful for > >> reviewing and debugging. I saw andrew request the account in glibc, > >> maybe it has already been in processs?). > >> > > > > I already told there's mess there, and I'd prefer to make things work > > first and then do cleanup. > > So how is progress going overall? The last submission I've seen is > already 2 months ago. Are there particular bits holding you up? > > > Alex Hi Alexander, For last time I mostly work on library, as it needs to be reworked well. But yes, there's one serious bug puzzling me. Tests like umount or pathconf fail but I see no major problem with it, as it's most probably structure padding mismatch between kernel and glibc. But there's (at least) one major problem I see. Float tests fail due to NULL-dereferencing (0x14 actually) at pthread_join(). It calls tgkill(), and after that child thread crashes. See stack trace at the end. The minimal test reproducing it is attached. The similar test where parent forks a child and then kills it, works fine. (Attached too). I see that in case of pthread, there's much more stuff that is cloned. Other's looking similar. pthread_create(): clone(child_stack=0xb953cea0, flags=CLONE_VM|CLONE_FS|CLONE_FILES |CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS |CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0xb953d398, tls=0xb953d7c0, child_tidptr=0xb953d398) = 1650 fork(): clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xe5af6278) = 30537 So this most probably means that ilp32 code doesn't handle one of cloned item properly. I have already discovered a bug where child processes used parent TLS, so maybe this is something similar... Except of this, I think ILP32 series is looking pretty well, at least kernel part. If you have any ideas/suggestions, I'll really appreciate it. Yury. strace -f ./trigo [...] clone(child_stack=0xdbbfb000, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND |CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS |CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0xdbbfb4f8, tls=0xdbbfb920, child_tidptr=0xdbbfb4f8) = 32030 rt_sigprocmask(SIG_BLOCK, [CHLD], Process 32030 attached [], 8) = 0 [pid 32029] rt_sigaction(SIGCHLD, NULL, [pid 32030] set_robust_list(0xdbbfb504, 12 [pid 32029] <... rt_sigaction resumed> {SIG_DFL, [ILL ABRT SEGV URG], 0}, 8) = 0 [pid 32030] <... set_robust_list resumed> ) = 0 [pid 32029] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 32030] write(1, "started\n", 8started [pid 32029] nanosleep({1, 65536}, [pid 32030] <... write resumed> ) = 8 [pid 32030] rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 [pid 32030] rt_sigsuspend([] [pid 32029] <... nanosleep resumed> 0xfff9fd98) = 0 [pid 32029] write(1, "stoping...\n", 11stoping...) = 11 [pid 32029] openat(AT_FDCWD, "/root/sys-root/libilp32/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = 3 [pid 32029] read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\267\0\1\0\0\0 \0\0004\0\0\0"..., 512) = 512 [pid 32029] fstat(3, {st_mode=S_IFREG|0644, st_size=429138, ...}) = 0 [pid 32029] mmap(NULL, 135104, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xdb3db000 [pid 32029] mprotect(0xdb3ec000, 61440, PROT_NONE) = 0 [pid 32029] mmap(0xdb3fb000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x10000) = 0xdb3fb000 [pid 32029] close(3) = 0 [pid 32029] tgkill(32029, 32030, SIGRTMIN) = 0 [pid 32030] <... rt_sigsuspend resumed> ) = ? ERESTARTNOHAND (To be restarted if no handler) [pid 32029] write(1, "pthread_cancel == 0\n", 20pthread_cancel == 0) = 20 [pid 32030] --- SIGRTMIN {si_signo=SIGRTMIN, si_code=SI_TKILL, si_pid=32029, si_uid=0} --- [pid 32029] write(1, "stopped\n", 8stopped [pid 32030] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x14} --- [pid 32029] <... write resumed> ) = ? [pid 32030] +++ killed by SIGSEGV +++ +++ killed by SIGSEGV +++ Segmentation fault dmesg: trigo[32246]: unhandled level 2 translation fault (11) at 0x00000014, esr 0x90000006 pgd = ffffffc009335000 [00000014] *pgd=000000007917c003, *pud=000000007917c003, *pmd=0000000000000000 CPU: 2 PID: 32246 Comm: trigo Not tainted 4.5.0+ #91 Hardware name: linux,dummy-virt (DT) task: ffffffc00900e400 ti: ffffffc009078000 task.ti: ffffffc009078000 PC is at 0xda6853f0 LR is at 0xda6d5440 pc : [<00000000da6853f0>] lr : [<00000000da6d5440>] pstate: 60000000 sp : 00000000da511bc0 x29: 00000000da512e10 x28: 00000000da6a7000 x27: 0000000000000000 x26: 00000000da513490 x25: 0000000000000000 x24: 0000000000400820 x23: 00000000da6a9000 x22: 00000000ff869acb x21: 00000000da6a9000 x20: 00000000da512e50 x19: 0000000000000000 x18: 0000000000000001 x17: 0000000000410bd8 x16: 00000000da691138 x15: 0000000000000000 x14: 0000000000000000 x13: 00000000da535970 x12: 0000000000000038 x11: 0000000000000028 x10: 0101010101010101 x9 : ff63647371607372 x8 : 0000000000000085 x7 : 0000000000007df5 x6 : 00000000da512e1c x5 : 00000000da513518 x4 : 0000000000000002 x3 : 00000000da513920 x2 : 0000000000000000 x1 : 0000000000000008 x0 : 00000000da513490 --/04w6evG8XlLl3ft Content-Type: application/gzip Content-Disposition: attachment; filename="mykill.tar.gz" Content-Transfer-Encoding: base64 H4sIAHot7FYAA+1WW2/bNhTOa/grWC8DpCySbMWWkaRulzqXenDiInbQDLsECkXZXHQbJbUx iv73HVKSK2nIuj1k7TB+DxJ5eC4fzyF1FK7vWRBYW0+JLmA4HIh3bzjo1t8Vtnq2M9zv2k7f GW51ez0bRHjwpKxK5Gnmcoy31jlf/5Xe59b/owiL+l+499RnAX2SGKLAjtN/rP72/tCW9e86 9j4oQv1tZ3+4hbtPwqaF/3n9F8dX56cLPMLFQUDF3OlvJE4focVsNh2/Pp5c4pcjbK3ikFoi Hdb7mN9bWRwHZOWyyMpWeeRR/mAIUWrdgch1OVk5fWOzFLAofzCWUW6g8RiC7Ggb5/qSEDQ9 kcLxWEezVz+cXF+8aSnFd795eZggND6bHp/PYdVYYmPWxcZbNwiwYaSZNwL/BwdgdvxqIrX0 Ulvu6zF9hJhPf8daZ0eLOVuyCKd6Zw93SByGbuRhoE47OsJ4vjheTAR5YexmjCAaecwH7gWl 72SMevT6SpKtOHW9huxtsGcYPHGz1cjicZxZ6To15CBgdyxI9u0/q3vryA0ZERm9p/wxOyvw DNu0e+ZB10zjupcdrdiHjiopZEdSb81bhAtpzbrapkhI6N6xUUEYjedXIkkhHA2TIFHOMi7s M83v0gx/a5KHhz14xXui5jc3YKHrLY1P63JV+qk4/GNPTr/hC8EROBTHS556fTNy+rDGIqiu WIcH2k5JUlN0eXjYlIFJIUVBmtZ8mjCtK4k5QpLIoSCFtuVpF5zK9OrYIHjnOTZivPM9qD6i 2FJrBKzFF2blTQILDxtzYfSiYVPSOmzs/2/Y6cJC1ENqT0+A3K9YDCqCcTtMZVAGaJvIzRdG b17PLn88xCSgboTkExLOQ2z4jZS3M9tS0ZuFqJZ3zRh96S/v14Gy/xeX9IlifKb/Q7fvVf1/ YHd7ov/bg77q//8GvmERCXKP4ufQB1lsrl6ghgj6SEvGlpEbNGWU87YhZ9GyKSvbSFOYRwyC CFndep1a2Tqh6WO6n2Q+iTJJBhWdGL+LmYd3URHr1s8johUily919AFtJ8As87WOKHtGvZ+j jn4EUjdPqSZH5XoeSVmpAB8OmuU8wpfX0+kR+ii6Q4bErdFgAB/+JXQX+AviMtC7n36RscQS ET6Zd5theML4bDI9xbviXxsm4gUt0o8TGmkdK+ExsVIa+HAfk1T8e3DJjvlYeyZ04aNZETF6 gtX7lfCgaQS8LGlGNKml42cjfDo7E+pJngleGpG78EkQw0allphXu/XhT840zWqzQFXS4vfa Jj7IhL96ZkUypH4aUJpovYbLNIsTcQgqr9viQ6OBlz08n5xfLS7gZ+6oqU69Godyn6c3k8Xt /Ho8Pp3PReK/9IVRUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFD4yvEHpegEvwAoAAA= --/04w6evG8XlLl3ft Content-Type: application/gzip Content-Disposition: attachment; filename="trigo.tar.gz" Content-Transfer-Encoding: base64 H4sIAGst7FYAA+1WbXPaRhDmq+9XXKjTkVyEEGBR2yEtBhyTEvAYPHGmLx75dALFQqdKp8RM p/+9eyewJWXctB9o2uk9H6S7vWdfbnd1Jx77C2ZWdooGoNM5FG+rc9jIv7eoWE2702o07Xa7 U2lYVqNpVfDhbsPKkCbciTGurNN4/We8z63/R8Fl/d84d9TzA7obH6LAtt1+qv7NVierf8Oy O5bdhPo323ajghu7CaeI/3n9573LV8M57mLZCCib2u2twG4jNJ9Ox/3z3miCv+tic8lW1BTJ MD+y+M7kjAVk6fihyZdp6NL43hCixLwFkePEZGm3jYelwA/Te2MRpgbq98HHvvZgXF8QgsYD Kez3dTQ9fT24enNRIrHb9266ihDqn417r2awaiywMW1g460TBNgwEu52wf7REaj1TkeSpW/Y cltP8RHyPfor1qr7GoOd+yFO9GoNVwlbrZzQxRA6reoI49m8Nx+J4IWyw32CaOj6HsSehfSN 9JH3nl+J+DKmjluQvQ1qhhFHDl92zZgxbibrxJCDwL/1g6jV/JTurkNn5ROR0TsaP6VnBq7R rDet+lGjnrC8lX0t24eOtlLIjgy9NC8FnElz2tttioSsnFu/mwWM+rNLkaQVtEadIFHOjV/Y Z5LeJhw/r5P7+xq8WE3U/PoaNHS9xHhcl6vSzjaGv23JbhdsIWiBY9Fesun1h5HdhjU/hOqK dXigvYREOaITr46LMlDJpChIkpzNOkzzJDFHSAZyLIJCe7LbRUyb9OrYIHj/BTYY3v8eqE8Q S7SCw5x/obb5kkDDxcZMKL0s6GzCOi7s/y/o6UJD1EOyxwMI7hcsBtsAWdnNVmHjoKwiN58p XZxPJ++OMQmoEyL5hITHK2x4hZSXM1ui6MVCbJcP6gx96XP334Ls/s++0l35+Mz9b3U6rez+ b9lt27bF/Q9Tdf//E/jKD0mQuhS/gJvQZ/XlS1QQwU1SkvmL0AmKMhrHZcXYDxdF2eYiKQrT 0AcnQpbXXicmX0c0eYr7KPNIyGUwKLuL8Qfmu/gAZb5uvDQkWiZy4oWOfkN7EUTGPa0qys6p +1NY1U9A6qQJ1eRos56GUrYhwNFBeRqHeHI1Hp+g38X9wJH4bDQYwNG/gPsF/oNi6ejDjz9n vjZhcJwNTh5FDucxyAm0H1vJWXnRD32ufZ0j6GVGQrlLuUOWYu+0wK3hi/n55bA3uOnDcz68 eT0dTXqn46HYC9oTMRMwdzYaD/GB+POHiXjBje2xiIZa1YxiRsyEBh6cDlEifoVimSrfw9oz wYUzfJsVwxIp+rgUFjSNgJUF5USTLB0/6+Lh9EzQo5SLJGlEptQjAYOsSxbMTVPG5bmgnsVQ B6/Tm8vBdDJ+BwwgMM+DrMETOEFC6Z3muTXcuLearfah3fm2hmfD4Q83w8kg44tgga2LcTHY Qh+IZq3Xt72wyTGBp0hrNq3J0tdwrrMykdxKElAaaZZetMyigmGRlwfjTkhooGWzfN8VCbjb xc9FD0J3fWI8emzfjdJ7Bg2ZjzffusPr0fxmdtXvD2cz0cJf+uhRUFBQUFBQUFBQUFBQUFBQ UFBQUFBQUNgR/gB/KeN/ACgAAA== --/04w6evG8XlLl3ft--