SCP doesn't complete transfers of large files
Olaf Föllinger
Olaf.Foellinger@sesa.de
Tue Jan 27 17:20:00 GMT 2004
On Tue, Jan 27, 2004 at 08:42:41AM -0500, Igor Pechtchanski wrote:
> On Tue, 27 Jan 2004, Olaf Föllinger wrote:
>
> > On Tue, Jan 27, 2004 at 12:36:29PM +0100, Dirk Sondermann wrote:
> > > I have also noticed this problem when copying files ~1GB from
> > > a remote host to the local host.
> > >
> > > Strangely, if x is a big file and x0 has just a few bytes,
> > > scp remote:x . may hang while scp remote:x* . succeeds.
> >
> > Same observation here. Just to make clear that it's not a singular
> > problem.
> >
> > Gruss Olaf Follinger
>
> Can anyone in this thread who can actually reproduce this problem attach
> to the hung scp process with gdb/strace and see where it hangs (and what
> it's doing)?
The process is
$ scp news:SFU35SEL_EN.exe tmp/
SFU35SEL_EN.exe 99% 218MB 0.0KB/s - stalled -
and the output of strace is attached. I've used 'strace -p <PID>' while
the scp-process was stalled already. I think I've tested with the latest
snapshot:
$ uname -a
CYGWIN_NT-5.0 nbof 1.5.7s(0.109/3/2) 20040124 15:46:47 i686 unknown
unknown Cygwin
Gruss Olaf Föllinger
--
Olaf Föllinger
Berater
S.E.S.A. Software und Systeme AG
Alt-Moabit 91a
D-10559 Berlin
Germany
Tel: +49 30 390722 -291
Fax: +49 30 390722 -222
Mobil: +49 173 6227080
http://www.sesa.de
mailto: Olaf.Foellinger@sesa.de
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20 20 [unknown (0x858)] scp 2424 _threadinfo::remove: wait 0x0
430 450 [unknown (0x858)] scp 2424 _threadinfo::remove: removed 0x10DF014 element 1
87576 88026 [win] scp 2424 wndproc 275 WM_TIMER 1 0
465 88491 [win] scp 2424 kill: kill (2424, 14)
188 88679 [win] scp 2424 sig_send: sendsig 0x354, pid 2424, signal 14, its_me 1
188 88867 [win] scp 2424 sig_send: wakeup 0x2D4
257 89124 [sig] scp 2424 sig_handle: signal 14 processing
173 89297 [sig] scp 2424 sig_handle: signal 14, about to call 0x404F10
176 89473 [sig] scp 2424 proc_subproc: args: 3, 1
168 89641 [sig] scp 2424 proc_subproc: clear waiting threads
162 89803 [sig] scp 2424 proc_subproc: finished clearing
374 90177 [sig] scp 2424 proc_subproc: returning 1
1137 91314 [sig] scp 2424 _threadinfo::interrupt_setup: armed signal_arrived 0x35C, sig 14, res 1
206 91520 [sig] scp 2424 setup_handler: interrupted known cygwin routine
274 91794 [win] scp 2424 sig_send: Waiting for pack.wakeup 0x2D4
980 92774 [main] scp 2424 reset_signal_arrived: reset signal_arrived
144 92918 [main] scp 2424 set_signal_mask: oldmask 0x0, newmask 0x2000, mask_bits 0x0
125 93043 [main] scp 2424 set_signal_mask: not calling sig_dispatch_pending
121 93164 [main] scp 2424 tcgetpgrp: 2424 = tcgetpgrp (1)
154 93318 [main] scp 2424 time: 1075220980 = time (0)
170 93488 [main] scp 2424 writev: writev (1, 0x22E200, 1)
116 93604 [main] scp 2424 fhandler_tty_slave::write: tty3, write(22E280, 126)
367 93971 [main] scp 2424 fhandler_tty_slave::write: (681): tty output_mutex: waiting -1 ms
121 94092 [main] scp 2424 fhandler_tty_slave::write: (681): tty output_mutex: acquired
145 94237 [main] scp 2424 fhandler_tty_slave::write: (724): tty output_mutex released
112 94349 [main] scp 2424 writev: 126 = write (1, 0x22E200, 1), errno 4
114 94463 [main] scp 2424 sigaction: signal 14, newact 0x0, oldact 0x22E470
160 94623 [main] scp 2424 set_signal_mask: oldmask 0x2000, newmask 0x0, mask_bits 0x2000
113 94736 [main] scp 2424 readv: -1 = readv (7, 0x22E570, 1), errno 4
116 94852 [main] scp 2424 readv: readv (7, 0x22E570, 1) blocking, sigcatchers 5
-3205 91647 [sig] scp 2424 setup_handler: signal 14 delivered
101948 193595 [sig] scp 2424 sig_handle: returning 1
134 193729 [sig] scp 2424 wait_sig: signalled 0x2D4
180 193909 [win] scp 2424 sig_send: returning 0x0 from sending signal 14
135 194044 [win] scp 2424 kill_worker: 0 = kill_worker (2424, 14), process_state 0x10C9
899191 1093235 [win] scp 2424 wndproc 275 WM_TIMER 1 0
568 1093803 [win] scp 2424 kill: kill (2424, 14)
151 1093954 [win] scp 2424 sig_send: sendsig 0x354, pid 2424, signal 14, its_me 1
147 1094101 [win] scp 2424 sig_send: wakeup 0x2D4
177 1094278 [sig] scp 2424 sig_handle: signal 14 processing
123 1094401 [sig] scp 2424 sig_handle: signal 14, about to call 0x404F10
123 1094524 [sig] scp 2424 proc_subproc: args: 3, 1
116 1094640 [sig] scp 2424 proc_subproc: clear waiting threads
112 1094752 [sig] scp 2424 proc_subproc: finished clearing
111 1094863 [sig] scp 2424 proc_subproc: returning 1
110 1094973 [sig] scp 2424 _threadinfo::interrupt_setup: armed signal_arrived 0x35C, sig 14, res 1
107 1095080 [sig] scp 2424 setup_handler: interrupted known cygwin routine
403 1095483 [sig] scp 2424 setup_handler: signal 14 delivered
117 1095600 [sig] scp 2424 sig_handle: returning 1
118 1095718 [sig] scp 2424 wait_sig: signalled 0x2D4
173 1095891 [win] scp 2424 sig_send: Waiting for pack.wakeup 0x2D4
137 1096028 [win] scp 2424 sig_send: returning 0x0 from sending signal 14
125 1096153 [win] scp 2424 kill_worker: 0 = kill_worker (2424, 14), process_state 0x10C9
581 1096734 [main] scp 2424 reset_signal_arrived: reset signal_arrived
126 1096860 [main] scp 2424 set_signal_mask: oldmask 0x0, newmask 0x2000, mask_bits 0x0
121 1096981 [main] scp 2424 set_signal_mask: not calling sig_dispatch_pending
127 1097108 [main] scp 2424 tcgetpgrp: 2424 = tcgetpgrp (1)
859 1097967 [main] scp 2424 time: 1075220981 = time (0)
243 1098210 [main] scp 2424 writev: writev (1, 0x22E200, 1)
129 1098339 [main] scp 2424 fhandler_tty_slave::write: tty3, write(22E280, 126)
144 1098483 [main] scp 2424 fhandler_tty_slave::write: (681): tty output_mutex: waiting -1 ms
127 1098610 [main] scp 2424 fhandler_tty_slave::write: (681): tty output_mutex: acquired
143 1098753 [main] scp 2424 fhandler_tty_slave::write: (724): tty output_mutex released
114 1098867 [main] scp 2424 writev: 126 = write (1, 0x22E200, 1), errno 4
119 1098986 [main] scp 2424 sigaction: signal 14, newact 0x0, oldact 0x22E470
174 1099160 [main] scp 2424 set_signal_mask: oldmask 0x2000, newmask 0x0, mask_bits 0x2000
129 1099289 [main] scp 2424 readv: -1 = readv (7, 0x22E570, 1), errno 4
123 1099412 [main] scp 2424 readv: readv (7, 0x22E570, 1) blocking, sigcatchers 5
995013 2094425 [win] scp 2424 wndproc 275 WM_TIMER 1 0
332 2094757 [win] scp 2424 kill: kill (2424, 14)
141 2094898 [win] scp 2424 sig_send: sendsig 0x354, pid 2424, signal 14, its_me 1
143 2095041 [win] scp 2424 sig_send: wakeup 0x2D4
164 2095205 [sig] scp 2424 sig_handle: signal 14 processing
130 2095335 [sig] scp 2424 sig_handle: signal 14, about to call 0x404F10
124 2095459 [sig] scp 2424 proc_subproc: args: 3, 1
117 2095576 [sig] scp 2424 proc_subproc: clear waiting threads
112 2095688 [sig] scp 2424 proc_subproc: finished clearing
112 2095800 [sig] scp 2424 proc_subproc: returning 1
111 2095911 [sig] scp 2424 _threadinfo::interrupt_setup: armed signal_arrived 0x35C, sig 14, res 1
134 2096045 [sig] scp 2424 setup_handler: interrupted known cygwin routine
113 2096158 [sig] scp 2424 setup_handler: signal 14 delivered
105 2096263 [sig] scp 2424 sig_handle: returning 1
124 2096387 [sig] scp 2424 wait_sig: signalled 0x2D4
155 2096542 [win] scp 2424 sig_send: Waiting for pack.wakeup 0x2D4
135 2096677 [win] scp 2424 sig_send: returning 0x0 from sending signal 14
118 2096795 [win] scp 2424 kill_worker: 0 = kill_worker (2424, 14), process_state 0x10C9
750 2097545 [main] scp 2424 reset_signal_arrived: reset signal_arrived
139 2097684 [main] scp 2424 set_signal_mask: oldmask 0x0, newmask 0x2000, mask_bits 0x0
122 2097806 [main] scp 2424 set_signal_mask: not calling sig_dispatch_pending
125 2097931 [main] scp 2424 tcgetpgrp: 2424 = tcgetpgrp (1)
128 2098059 [main] scp 2424 time: 1075220982 = time (0)
171 2098230 [main] scp 2424 writev: writev (1, 0x22E200, 1)
239 2098469 [main] scp 2424 fhandler_tty_slave::write: tty3, write(22E280, 126)
133 2098602 [main] scp 2424 fhandler_tty_slave::write: (681): tty output_mutex: waiting -1 ms
130 2098732 [main] scp 2424 fhandler_tty_slave::write: (681): tty output_mutex: acquired
139 2098871 [main] scp 2424 fhandler_tty_slave::write: (724): tty output_mutex released
118 2098989 [main] scp 2424 writev: 126 = write (1, 0x22E200, 1), errno 4
121 2099110 [main] scp 2424 sigaction: signal 14, newact 0x0, oldact 0x22E470
162 2099272 [main] scp 2424 set_signal_mask: oldmask 0x2000, newmask 0x0, mask_bits 0x2000
137 2099409 [main] scp 2424 readv: -1 = readv (7, 0x22E570, 1), errno 4
127 2099536 [main] scp 2424 readv: readv (7, 0x22E570, 1) blocking, sigcatchers 5
999083 3098619 [win] scp 2424 wndproc 275 WM_TIMER 1 0
324 3098943 [win] scp 2424 kill: kill (2424, 14)
666 3099609 [win] scp 2424 sig_send: sendsig 0x354, pid 2424, signal 14, its_me 1
157 3099766 [win] scp 2424 sig_send: wakeup 0x2D4
164 3099930 [sig] scp 2424 sig_handle: signal 14 processing
122 3100052 [sig] scp 2424 sig_handle: signal 14, about to call 0x404F10
121 3100173 [sig] scp 2424 proc_subproc: args: 3, 1
110 3100283 [sig] scp 2424 proc_subproc: clear waiting threads
112 3100395 [sig] scp 2424 proc_subproc: finished clearing
105 3100500 [sig] scp 2424 proc_subproc: returning 1
126 3100626 [sig] scp 2424 _threadinfo::interrupt_setup: armed signal_arrived 0x35C, sig 14, res 1
106 3100732 [sig] scp 2424 setup_handler: interrupted known cygwin routine
132 3100864 [sig] scp 2424 setup_handler: signal 14 delivered
104 3100968 [sig] scp 2424 sig_handle: returning 1
129 3101097 [sig] scp 2424 wait_sig: signalled 0x2D4
154 3101251 [win] scp 2424 sig_send: Waiting for pack.wakeup 0x2D4
133 3101384 [win] scp 2424 sig_send: returning 0x0 from sending signal 14
115 3101499 [win] scp 2424 kill_worker: 0 = kill_worker (2424, 14), process_state 0x10C9
782 3102281 [main] scp 2424 reset_signal_arrived: reset signal_arrived
133 3102414 [main] scp 2424 set_signal_mask: oldmask 0x0, newmask 0x2000, mask_bits 0x0
131 3102545 [main] scp 2424 set_signal_mask: not calling sig_dispatch_pending
121 3102666 [main] scp 2424 tcgetpgrp: 2424 = tcgetpgrp (1)
125 3102791 [main] scp 2424 time: 1075220983 = time (0)
166 3102957 [main] scp 2424 writev: writev (1, 0x22E200, 1)
120 3103077 [main] scp 2424 fhandler_tty_slave::write: tty3, write(22E280, 126)
117 3103194 [main] scp 2424 fhandler_tty_slave::write: (681): tty output_mutex: waiting -1 ms
123 3103317 [main] scp 2424 fhandler_tty_slave::write: (681): tty output_mutex: acquired
137 3103454 [main] scp 2424 fhandler_tty_slave::write: (724): tty output_mutex released
326 3103780 [main] scp 2424 writev: 126 = write (1, 0x22E200, 1), errno 4
139 3103919 [main] scp 2424 sigaction: signal 14, newact 0x0, oldact 0x22E470
158 3104077 [main] scp 2424 set_signal_mask: oldmask 0x2000, newmask 0x0, mask_bits 0x2000
128 3104205 [main] scp 2424 readv: -1 = readv (7, 0x22E570, 1), errno 4
121 3104326 [main] scp 2424 readv: readv (7, 0x22E570, 1) blocking, sigcatchers 5
996463 4100789 [win] scp 2424 wndproc 275 WM_TIMER 1 0
304 4101093 [win] scp 2424 kill: kill (2424, 14)
148 4101241 [win] scp 2424 sig_send: sendsig 0x354, pid 2424, signal 14, its_me 1
136 4101377 [win] scp 2424 sig_send: wakeup 0x2D4
152 4101529 [sig] scp 2424 sig_handle: signal 14 processing
120 4101649 [sig] scp 2424 sig_handle: signal 14, about to call 0x404F10
150 4101799 [sig] scp 2424 proc_subproc: args: 3, 1
118 4101917 [sig] scp 2424 proc_subproc: clear waiting threads
113 4102030 [sig] scp 2424 proc_subproc: finished clearing
113 4102143 [sig] scp 2424 proc_subproc: returning 1
109 4102252 [sig] scp 2424 _threadinfo::interrupt_setup: armed signal_arrived 0x35C, sig 14, res 1
106 4102358 [sig] scp 2424 setup_handler: interrupted known cygwin routine
111 4102469 [sig] scp 2424 setup_handler: signal 14 delivered
103 4102572 [sig] scp 2424 sig_handle: returning 1
114 4102686 [sig] scp 2424 wait_sig: signalled 0x2D4
158 4102844 [win] scp 2424 sig_send: Waiting for pack.wakeup 0x2D4
130 4102974 [win] scp 2424 sig_send: returning 0x0 from sending signal 14
118 4103092 [win] scp 2424 kill_worker: 0 = kill_worker (2424, 14), process_state 0x10C9
664 4103756 [main] scp 2424 reset_signal_arrived: reset signal_arrived
138 4103894 [main] scp 2424 set_signal_mask: oldmask 0x0, newmask 0x2000, mask_bits 0x0
123 4104017 [main] scp 2424 set_signal_mask: not calling sig_dispatch_pending
126 4104143 [main] scp 2424 tcgetpgrp: 2424 = tcgetpgrp (1)
127 4104270 [main] scp 2424 time: 1075220984 = time (0)
169 4104439 [main] scp 2424 writev: writev (1, 0x22E200, 1)
125 4104564 [main] scp 2424 fhandler_tty_slave::write: tty3, write(22E280, 126)
119 4104683 [main] scp 2424 fhandler_tty_slave::write: (681): tty output_mutex: waiting -1 ms
311 4104994 [main] scp 2424 fhandler_tty_slave::write: (681): tty output_mutex: acquired
159 4105153 [main] scp 2424 fhandler_tty_slave::write: (724): tty output_mutex released
126 4105279 [main] scp 2424 writev: 126 = write (1, 0x22E200, 1), errno 4
182 4105461 [main] scp 2424 sigaction: signal 14, newact 0x0, oldact 0x22E470
164 4105625 [main] scp 2424 set_signal_mask: oldmask 0x2000, newmask 0x0, mask_bits 0x2000
140 4105765 [main] scp 2424 readv: -1 = readv (7, 0x22E570, 1), errno 4
126 4105891 [main] scp 2424 readv: readv (7, 0x22E570, 1) blocking, sigcatchers 5
998113 5104004 [win] scp 2424 wndproc 275 WM_TIMER 1 0
110968 5214972 [win] scp 2424 kill: kill (2424, 14)
224 5215196 [win] scp 2424 sig_send: sendsig 0x354, pid 2424, signal 14, its_me 1
160 5215356 [win] scp 2424 sig_send: wakeup 0x2D4
167 5215523 [sig] scp 2424 sig_handle: signal 14 processing
122 5215645 [sig] scp 2424 sig_handle: signal 14, about to call 0x404F10
125 5215770 [sig] scp 2424 proc_subproc: args: 3, 1
111 5215881 [sig] scp 2424 proc_subproc: clear waiting threads
111 5215992 [sig] scp 2424 proc_subproc: finished clearing
105 5216097 [sig] scp 2424 proc_subproc: returning 1
110 5216207 [sig] scp 2424 _threadinfo::interrupt_setup: armed signal_arrived 0x35C, sig 14, res 1
133 5216340 [sig] scp 2424 setup_handler: interrupted known cygwin routine
114 5216454 [sig] scp 2424 setup_handler: signal 14 delivered
102 5216556 [sig] scp 2424 sig_handle: returning 1
115 5216671 [sig] scp 2424 wait_sig: signalled 0x2D4
156 5216827 [win] scp 2424 sig_send: Waiting for pack.wakeup 0x2D4
135 5216962 [win] scp 2424 sig_send: returning 0x0 from sending signal 14
117 5217079 [win] scp 2424 kill_worker: 0 = kill_worker (2424, 14), process_state 0x10C9
633 5217712 [main] scp 2424 reset_signal_arrived: reset signal_arrived
132 5217844 [main] scp 2424 set_signal_mask: oldmask 0x0, newmask 0x2000, mask_bits 0x0
117 5217961 [main] scp 2424 set_signal_mask: not calling sig_dispatch_pending
126 5218087 [main] scp 2424 tcgetpgrp: 2424 = tcgetpgrp (1)
126 5218213 [main] scp 2424 time: 1075220985 = time (0)
523 5218736 [main] scp 2424 writev: writev (1, 0x22E200, 1)
170 5218906 [main] scp 2424 fhandler_tty_slave::write: tty3, write(22E280, 126)
131 5219037 [main] scp 2424 fhandler_tty_slave::write: (681): tty output_mutex: waiting -1 ms
121 5219158 [main] scp 2424 fhandler_tty_slave::write: (681): tty output_mutex: acquired
157 5219315 [main] scp 2424 fhandler_tty_slave::write: (724): tty output_mutex released
120 5219435 [main] scp 2424 writev: 126 = write (1, 0x22E200, 1), errno 4
120 5219555 [main] scp 2424 sigaction: signal 14, newact 0x0, oldact 0x22E470
561 5220116 [main] scp 2424 set_signal_mask: oldmask 0x2000, newmask 0x0, mask_bits 0x2000
162 5220278 [main] scp 2424 readv: -1 = readv (7, 0x22E570, 1), errno 4
629 5220907 [main] scp 2424 readv: readv (7, 0x22E570, 1) blocking, sigcatchers 5
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