bug#10404: [PATCH] Power: sleep longer than two seconds at a time

[Glenn Morris <rgm@gnu.org>]

Lars Ingebrigtsen wrote:

> If I start "emacs -Q" and strace it, I see basically the following every
> couple of seconds.
>
> [pid  8439] --- SIGIO {si_signo=SIGIO, si_code=SI_KERNEL} ---
> [pid  8439] rt_sigreturn()              = 1
> [pid 8439] recvmsg(9, {msg_name(0)=NULL, msg_iov(1)=[{"\241
> \33\f\263\0\340\3!\1\0\0.\1\0\0000\5\0\0\263\0\340\3\0\0\0\0\0\0\0\0",
> 4096}], msg_controllen=0, msg_flags=0}, 0) = 32
> [pid 8439] recvmsg(9, 0x7ffda37f3120, 0) = -1 EAGAIN (Resource
> temporarily unavailable)
> [pid 8439] poll([{fd=6, events=POLLIN}, {fd=8, events=POLLIN}, {fd=9,
> events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
> [pid 8439] poll([{fd=6, events=POLLIN}, {fd=8, events=POLLIN}, {fd=9,
> events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
> [pid 8439] poll([{fd=9, events=POLLIN|POLLOUT}], 1, 4294967295) = 1
> ([{fd=9, revents=POLLOUT}])
> [pid 8439] writev(9, [{"\31\0\v\0\366\0\0\0\0\0\30\0!
> \0\0\366\0\0\0!\1\0\0.\1\0\0000\5\0\0"..., 44}, {NULL, 0}, {"", 0}],
> 3) = 44
> [pid 8439] recvmsg(9, 0x7ffda37f2ff0, 0) = -1 EAGAIN (Resource
> temporarily unavailable)
> [pid 8439] recvmsg(9, 0x7ffda37f3120, 0) = -1 EAGAIN (Resource
> temporarily unavailable)
> [pid 8439] poll([{fd=6, events=POLLIN}, {fd=8, events=POLLIN}, {fd=9,
> events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
> [pid 8439] recvmsg(9, 0x7ffda37f3340, 0) = -1 EAGAIN (Resource
> temporarily unavailable)
> [pid 8439] poll([{fd=6, events=POLLIN}, {fd=8, events=POLLIN}, {fd=9,
> events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
> [pid 8439] pselect6(14, [6 8 9 13], [], NULL, {100000, 0}, {NULL, 8})
> = 1 (in [9], left {99998, 551877999})
>
> So something is polling and stuff on Linux, at least...


I don't see anything, unless I do something with the Emacs window, like
move the cursor over it, or move another application's window over it.

This report is 5 years old. It would be good to resolve it one way or
the other. I'm not qualified to do so.