On ma, 2016-05-09 at 15:32 -0700, Junio C Hamano wrote:
> Junio C Hamano <gitster@xxxxxxxxx> writes:
>
> >
> > David Turner <dturner@xxxxxxxxxxxxxxxx> writes:
> >
> > >
> > > On Mon, 2016-05-09 at 14:40 -0700, Junio C Hamano wrote:
> > > >
> > > > Hmmm, I seem to be getting
> > > >
> > > > $ cat t/trash*7900*/err
> > > > fatal: Already running
> > > >
> > > > after running t7900 and it fails at #5, after applying
> > > > "index-helper: optionally automatically run"
> The symptom looks pretty similar to $gmane/293461 reported earlier.
> Here is how "t7900-index-helper.sh -i -v -x -d" ends.
>
>
> expecting success:
> test_when_finished "git index-helper --kill" &&
> rm -f .git/index-helper.sock &&
> git status &&
> test_path_is_missing .git/index-helper.sock &&
> test_config indexhelper.autorun true &&
> git status &&
> test -S .git/index-helper.sock &&
> git status 2>err &&
> test -S .git/index-helper.sock &&
> test_must_be_empty err &&
> git index-helper --kill &&
> test_config indexhelper.autorun false &&
> git status &&
> test_path_is_missing .git/index-helper.sock
>
> + test_when_finished git index-helper --kill
> + test 0 = 0
> + test_cleanup={ git index-helper --kill
> } && (exit "$eval_ret"); eval_ret=$?; :
> + rm -f .git/index-helper.sock
> + git status
> On branch master
> Untracked files:
> (use "git add <file>..." to include in what will be committed)
>
> err
>
> nothing added to commit but untracked files present (use "git add" to
> track)
> + test_path_is_missing .git/index-helper.sock
> + test -e .git/index-helper.sock
> + test_config indexhelper.autorun true
> + config_dir=
> + test indexhelper.autorun = -C
> + test_when_finished test_unconfig 'indexhelper.autorun'
> + test 0 = 0
> + test_cleanup={ test_unconfig 'indexhelper.autorun'
> } && (exit "$eval_ret"); eval_ret=$?; { git index-
> helper --kill
> } && (exit "$eval_ret"); eval_ret=$?; :
> + git config indexhelper.autorun true
> + git status
> error: last command exited with $?=141
> not ok 5 - index-helper autorun works
> #
> # test_when_finished "git index-helper --kill" &&
> # rm -f .git/index-helper.sock &&
> # git status &&
> # test_path_is_missing .git/index-helper.sock &&
> # test_config indexhelper.autorun true &&
> # git status &&
> # test -S .git/index-helper.sock &&
> # git status 2>err &&
> # test -S .git/index-helper.sock &&
> # test_must_be_empty err &&
> # git index-helper --kill &&
> # test_config indexhelper.autorun false &&
> # git status &&
> # test_path_is_missing .git/index-helper.sock
> #
Here are the relevant bits of a strace, pid 22200 is the second git
status, 222197 is the index helper. 22122 is the test script
22200 socket(PF_LOCAL, SOCK_STREAM, 0) = 7
22200 connect(7, {sa_family=AF_LOCAL, sun_path=".git/index-helper.sock"}, 110 <unfinished ...>
22197 <... poll resumed> ) = 1
22197 accept(7, 0, NULL) = 8
22197 fcntl(8, F_GETFL) = 0x2 (flags O_RDWR)
22197 fcntl(8, F_SETFL, O_RDWR) = 0
22197 read(8, <unfinished ...>
22200 <... connect resumed> ) = 0
22200 rt_sigaction(SIGPIPE, {SIG_IGN, [PIPE], SA_RESTORER|SA_RESTART, 0x7fcc463fdd40}, {SIG_DFL, [PIPE], SA_RESTORER|SA_RESTART, 0x7fcc463fdd40}, 8) = 0
22200 write(7, "000fpoke 22200 ", 15 <unfinished ...>
22197 <... read resumed> 0x7ffc4e4b9b20, 4) = 4
22197 read(8, 0x7ffc4e4b9c70, 11) = 11
22197 write(8, 0x18b08b0, 6) = 6
22197 close(8) = 0
22197 poll([?] 0x7ffc4e4b9b80, 1, 600000 <unfinished ...>
22200 <... write resumed> ) = 15
22200 write(7, "0000", 4) = -1 EPIPE (Broken pipe)
22200 --- SIGPIPE {si_signo=SIGPIPE, si_code=SI_USER, si_pid=22200, si_uid=1000} ---
22200 rt_sigaction(SIGPIPE, {SIG_DFL, [PIPE], SA_RESTORER|SA_RESTART, 0x7fcc463fdd40}, {SIG_IGN, [PIPE], SA_RESTORER|SA_RESTART, 0x7fcc463fdd40}, 8) = 0
22200 tgkill(22200, 22200, SIGPIPE) = 0
22200 --- SIGPIPE {si_signo=SIGPIPE, si_code=SI_TKILL, si_pid=22200, si_uid=1000} ---
22200 +++ killed by SIGPIPE +++
22122 <... wait4 resumed> [{WIFSIGNALED(s) && WTERMSIG(s) == SIGPIPE}], 0, NULL) = 22200
22122 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=22200, si_status=SIGPIPE, si_utime=0, si_stime=0} ---
Looks like the index helper closes the socket, but git status still
wants to write to it. The index-helper also doesn't seem to read all
data from the socket.
--
Dennis Kaarsemaker
www.kaarsemaker.net
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