2010/2/16 Martin-Éric Racine <q-f...@iki.fi>: > On Tue, Feb 16, 2010 at 1:16 AM, Frans Pop <elen...@planet.nl> wrote: >> On Monday 15 February 2010, Martin-Éric Racine wrote:> >>> I suppose this leaves tracking this with strace as a last resort. >>> However, I cannot remember if strace is actually capable of tracking >>> shell scripts? >> >> Sure it is. Just make sure you use '-f' so that subprocesses also get >> traced. > > Noted. I'll try that.
The result of using strace proved interesting. Having a third SSH shell logged in as well. First, the relevant part of 'sudo ps f' that showed on my third login shell: 4557 pts/0 S+ 15:42 strace -f -o deboostrap_strace.txt debootstrap lenny lenny/ http://ftp.fi.debian.org/debian 4559 pts/0 T+ 0:00 \_ /bin/sh -ex /usr/sbin/debootstrap lenny lenny/ http://ftp.fi.debian.org/debian 8251 pts/0 S+ 0:40 \_ /bin/sh -ex /usr/sbin/debootstrap lenny lenny/ http://ftp.fi.debian.org/debian 8252 pts/0 T+ 0:00 \_ /bin/sh -ex /usr/sbin/debootstrap lenny lenny/ http://ftp.fi.debian.org/debian 8326 pts/0 D+ 0:00 | \_ dpkg --status-fd 8 --force-depends --unpack var/cache/apt/archives/libacl1_2.2.47-2_i386.deb var/cache/apt/archives/li 8253 pts/0 S+ 0:00 \_ /bin/sh -ex /usr/sbin/debootstrap lenny lenny/ http://ftp.fi.debian.org/debian This seems to indicate that installation got stuck when unpacking libacl. The end of the strace log shows: 8325 execve("/bin/sleep", ["sleep", "1"], [/* 30 vars */]) = 0 8325 brk(0) = 0x8b4f000 8325 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 8325 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f86000 8325 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) 8325 open("/etc/ld.so.cache", O_RDONLY) = 3 8325 fstat64(3, {st_mode=S_IFREG|0644, st_size=52971, ...}) = 0 8325 mmap2(NULL, 52971, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f79000 8325 close(3) = 0 8325 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) 8325 open("/lib/libc.so.6", O_RDONLY) = 3 8325 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\260e\1\0004\0\0\0t"..., 512) = 512 8325 fstat64(3, {st_mode=S_IFREG|0755, st_size=1294572, ...}) = 0 8252 rt_sigprocmask(SIG_SETMASK, [], <unfinished ...> 8325 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...> 8252 <... rt_sigprocmask resumed> NULL, 8) = 0 8325 <... mmap2 resumed> ) = 0xb7f78000 8252 rt_sigprocmask(SIG_BLOCK, [CHLD], <unfinished ...> 8325 mmap2(NULL, 1300080, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0 <unfinished ...> 8252 <... rt_sigprocmask resumed> [], 8) = 0 8325 <... mmap2 resumed> ) = 0xb7e3a000 8252 rt_sigprocmask(SIG_SETMASK, [], <unfinished ...> 8325 mmap2(0xb7f72000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x138 <unfinished ...> 8252 <... rt_sigprocmask resumed> NULL, 8) = 0 8325 <... mmap2 resumed> ) = 0xb7f72000 8252 rt_sigprocmask(SIG_BLOCK, [CHLD], <unfinished ...> 8325 mmap2(0xb7f75000, 9840, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0 <unfinished ...> 8252 <... rt_sigprocmask resumed> [], 8) = 0 8325 <... mmap2 resumed> ) = 0xb7f75000 8252 rt_sigaction(SIGINT, {0x807ef30, [], 0}, <unfinished ...> 8325 close(3 <unfinished ...> 8252 <... rt_sigaction resumed> {0x8091d90, [], 0}, 8) = 0 8325 <... close resumed> ) = 0 8252 waitpid(-1, <unfinished ...> 8325 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7e39000 8325 set_thread_area({entry_number:-1 -> 6, base_addr:0xb7e396b0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 8325 mprotect(0xb7f72000, 4096, PROT_READ) = 0 8325 munmap(0xb7f79000, 52971) = 0 8325 brk(0) = 0x8b4f000 8325 brk(0x8b70000) = 0x8b70000 8325 nanosleep({1, 0}, That nanosleep statement is where it got stuck. I have no clue of what caused it, though. Cheers! Martin-Éric -- To UNSUBSCRIBE, email to debian-boot-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/11fae7c71002160324y2937db44w913a59f5414ff...@mail.gmail.com
