[Python-apps-team] Bug#756018: mercurial: "hg clone" hangs after "adding changesets"

Vincent Lefevre vincent at vinc17.net
Fri Jul 25 13:22:05 UTC 2014 

Package: mercurial
Version: 3.0.2-1
Severity: important

$ hg clone http://dev.mutt.org/hg/mutt
destination directory: mutt
requesting all changes
adding changesets

Then hg is hanging. The CPU, disk and network activity is very low.

The backtrace of the running process:

(gdb) bt
#0  0x00007fc8a741fd7d in __libc_recv (fd=3, buf=0x2162494, n=7614, flags=-1)
    at ../sysdeps/unix/sysv/linux/x86_64/recv.c:29
#1  0x00000000005ada8c in __recv_alias ()
    at /usr/include/x86_64-linux-gnu/bits/socket2.h:44
#2  sock_recv_guts.lto_priv () at ../Modules/socketmodule.c:2422
#3  0x00000000005ad735 in sock_recv.lto_priv ()
    at ../Modules/socketmodule.c:2507
#4  0x00000000004c3c6d in call_function (oparg=<optimized out>, 
    pp_stack=<optimized out>) at ../Python/ceval.c:4021
#5  PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#6  0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#7  0x00000000004c416a in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#8  call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#9  PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#10 0x00000000004c4422 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4107
#11 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#12 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#13 0x00000000004c4422 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4107
#14 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#15 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#16 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#17 0x00000000004c416a in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#18 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#19 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#20 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#21 0x00000000004c416a in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#22 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#23 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#24 0x00000000004f6bf4 in gen_send_ex.isra.0 (exc=0, arg=0x0)
    at ../Objects/genobject.c:85
#25 gen_iternext.lto_priv () at ../Objects/genobject.c:283
#26 0x00000000004c4026 in PyEval_EvalFrameEx () at ../Python/ceval.c:2498
#27 0x00000000004f6bf4 in gen_send_ex.isra.0 (exc=0, arg=0x0)
    at ../Objects/genobject.c:85
#28 gen_iternext.lto_priv () at ../Objects/genobject.c:283
#29 0x00000000004c4026 in PyEval_EvalFrameEx () at ../Python/ceval.c:2498
#30 0x00000000004f6bf4 in gen_send_ex.isra.0 (exc=0, arg=0x0)
    at ../Objects/genobject.c:85
#31 gen_iternext.lto_priv () at ../Objects/genobject.c:283
#32 0x00000000004c4026 in PyEval_EvalFrameEx () at ../Python/ceval.c:2498
#33 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#34 0x00000000004c416a in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#35 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#36 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#37 0x00000000004c4422 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4107
#38 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#39 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#40 0x00000000004c4422 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4107
#41 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#42 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#43 0x00000000004c4422 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4107
#44 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#45 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#46 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#47 0x00000000004c416a in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#48 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#49 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#50 0x00000000004c4422 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4107
#51 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#52 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#53 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#54 0x00000000004c416a in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#55 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#56 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#57 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#58 0x00000000004c416a in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#59 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#60 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#61 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#62 0x00000000004c416a in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#63 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#64 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#65 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#66 0x00000000004c416a in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#67 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#68 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#69 0x00000000004df2f8 in PyEval_EvalCodeEx (closure=<optimized out>, 
    defcount=<optimized out>, defs=<optimized out>, kwcount=<optimized out>, 
    kws=<optimized out>, argcount=<optimized out>, args=<optimized out>, 
    locals=<optimized out>, globals=<optimized out>, co=<optimized out>)
    at ../Python/ceval.c:3253
#70 function_call.lto_priv () at ../Objects/funcobject.c:526
#71 0x00000000004c768f in PyObject_Call (kw=<optimized out>, 
    arg=<optimized out>, func=<optimized out>) at ../Objects/abstract.c:2529
#72 ext_do_call (nk=<optimized out>, na=<optimized out>, 
    flags=<optimized out>, pp_stack=<optimized out>, func=<optimized out>)
    at ../Python/ceval.c:4334
#73 PyEval_EvalFrameEx () at ../Python/ceval.c:2706
#74 0x00000000004df2f8 in PyEval_EvalCodeEx (closure=<optimized out>, 
    defcount=<optimized out>, defs=<optimized out>, kwcount=<optimized out>, 
    kws=<optimized out>, argcount=<optimized out>, args=<optimized out>, 
    locals=<optimized out>, globals=<optimized out>, co=<optimized out>)
    at ../Python/ceval.c:3253
#75 function_call.lto_priv () at ../Objects/funcobject.c:526
#76 0x00000000004c768f in PyObject_Call (kw=<optimized out>, 
    arg=<optimized out>, func=<optimized out>) at ../Objects/abstract.c:2529
#77 ext_do_call (nk=<optimized out>, na=<optimized out>, 
    flags=<optimized out>, pp_stack=<optimized out>, func=<optimized out>)
    at ../Python/ceval.c:4334
#78 PyEval_EvalFrameEx () at ../Python/ceval.c:2706
#79 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#80 0x00000000004c5754 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#81 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#82 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#83 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#84 0x00000000004c5754 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#85 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#86 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#87 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#88 0x00000000004c5754 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#89 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#90 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#91 0x00000000004c4422 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4107
#92 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#93 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#94 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#95 0x00000000004c5754 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4117
#96 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#97 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#98 0x00000000004c4422 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4107
#99 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#100 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#101 0x00000000004c4422 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4107
#102 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#103 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#104 0x00000000004c4422 in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=<optimized out>, 
    func=<optimized out>) at ../Python/ceval.c:4107
#105 call_function (oparg=<optimized out>, pp_stack=<optimized out>)
    at ../Python/ceval.c:4042
#106 PyEval_EvalFrameEx () at ../Python/ceval.c:2667
#107 0x00000000004c2509 in PyEval_EvalCodeEx () at ../Python/ceval.c:3253
#108 0x00000000004fbdff in PyEval_EvalCode (
    locals={'fp': <file at remote 0x7fc8a77fe1e0>, 'demandimport': <module at remote 0x7fc8a76da1d8>, '__builtins__': <module at remote 0x7fc8a77dcb08>, 'mercurial': <module at remote 0x7fc8a76d2e88>, '__file__': '/usr/bin/hg', 'libdir': '@LIBDIR@', '__package__': None, 'sys': <module at remote 0x7fc8a77dcbb0>, '__name__': '__main__', 'os': <module at remote 0x7fc8a77b8d00>, '__doc__': None}, 
    globals={'fp': <file at remote 0x7fc8a77fe1e0>, 'demandimport': <module at remote 0x7fc8a76da1d8>, '__builtins__': <module at remote 0x7fc8a77dcb08>, 'mercurial': <module at remote 0x7fc8a76d2e88>, '__file__': '/usr/bin/hg', 'libdir': '@LIBDIR@', '__package__': None, 'sys': <module at remote 0x7fc8a77dcbb0>, '__name__': '__main__', 'os': <module at remote 0x7fc8a77b8d00>, '__doc__': None}, 
    co=0x7fc8a771aab0) at ../Python/ceval.c:667
#109 run_mod.lto_priv () at ../Python/pythonrun.c:1370
#110 0x00000000004f1752 in PyRun_FileExFlags () at ../Python/pythonrun.c:1356
#111 0x00000000004f0894 in PyRun_SimpleFileExFlags ()
    at ../Python/pythonrun.c:948
#112 0x0000000000492eb3 in Py_Main () at ../Modules/main.c:640
#113 0x00007fc8a6769b45 in __libc_start_main (main=0x492970 <main>, argc=4, 
    argv=0x7fff745f0748, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7fff745f0738) at libc-start.c:287
#114 0x000000000049289f in _start ()

No such problem on another Debian/unstable machine.

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.11-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages mercurial depends on:
ii  libc6             2.19-7
ii  mercurial-common  3.0.2-1
ii  python            2.7.8-1
ii  ucf               3.0030

Versions of packages mercurial recommends:
ii  openssh-client  1:6.6p1-6

Versions of packages mercurial suggests:
pn  kdiff3 | kdiff3-qt | kompare | meld | tkcvs | mgdiff  <none>
pn  qct                                                   <none>

-- no debconf information

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