Strace of when vim hangs:

After the SIGINT (control-C) is of course resumes.


foton.m% strace -p 8439                                                         
        
Process 8439 attached - interrupt to quit
pause()                                 = ? ERESTARTNOHAND (To be restarted)
--- SIGINT (Interrupt) @ 0 (0) ---
rt_sigaction(SIGINT, {0x815a1d0, [], 0}, {0x815a1d0, [], 0}, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [INT], [INT], 8) = 0
sigreturn()                             = ? (mask now [])
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
select(8, [0 5 7], NULL, [0 5], {0, 0}) = 0 (Timeout)
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
select(8, [0 5 7], NULL, [0 5], {0, 0}) = 0 (Timeout)
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) =

-- 
vim: hang after ^Z / fg
https://bugs.launchpad.net/bugs/291373
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