On 4/21/20 12:29 AM, Jason A. Donenfeld wrote:
> Were you planning on committing this to Savannah?
Yes, this will most likely end up as patch 17, unless a higher-priority
thing comes up first.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevi
Were you planning on committing this to Savannah?
On 4/20/20 6:02 PM, Jason A. Donenfeld wrote:
> It seems like process substitution fifo lifetime is really tricky. You
> can't really reference track, since the path is just a string that
> could be manipulated. So how do you know when it's safe to clean up
> that fd and that nobody is using it?
On Mon, Apr 20, 2020 at 3:58 PM Chet Ramey wrote:
> OK, good. It was either that or closing the fd after reaping the child
> process -- I couldn't tell 100% from the system call trace.
The latter is an interesting possibility. I assume SIGCHLD comes in
through a signal handler, so it's asynchrono
On 4/20/20 5:56 PM, Jason A. Donenfeld wrote:
> On Mon, Apr 20, 2020 at 3:49 PM Chet Ramey wrote:
>>
>> On 4/20/20 5:01 PM, Jason A. Donenfeld wrote:
>>> On 4/20/20, Chet Ramey wrote:
On 4/20/20 1:15 AM, Jason A. Donenfeld wrote:
> Hi,
>
> I've uncovered a very unusual race condi
On Mon, Apr 20, 2020 at 3:49 PM Chet Ramey wrote:
>
> On 4/20/20 5:01 PM, Jason A. Donenfeld wrote:
> > On 4/20/20, Chet Ramey wrote:
> >> On 4/20/20 1:15 AM, Jason A. Donenfeld wrote:
> >>> Hi,
> >>>
> >>> I've uncovered a very unusual race condition when using process
> >>> substitution and dev
On 4/20/20 5:01 PM, Jason A. Donenfeld wrote:
> On 4/20/20, Chet Ramey wrote:
>> On 4/20/20 1:15 AM, Jason A. Donenfeld wrote:
>>> Hi,
>>>
>>> I've uncovered a very unusual race condition when using process
>>> substitution and developed as minimal a reproducer as I could create:
>>
>> What versio
This one will reproduce immediately:
#!/bin/bash
set -e
a="my name is a"
b="my name is b"
sleep() { read -t "$1" -N 1 || true; }
doit() { sleep 0.1; "$@"; }
while true; do
doit cat <(echo "$a") <(echo "$b")
done
Here's a simpler reproducer:
set -e
a="my name is a"
b="my name is b"
pretty() { echo -e "\x1b[0m"; }
doit() { pretty; "$@"; }
while true; do
doit cat <(echo "$a") <(echo "$b")
done
On 4/20/20, Chet Ramey wrote:
> On 4/20/20 1:15 AM, Jason A. Donenfeld wrote:
>> Hi,
>>
>> I've uncovered a very unusual race condition when using process
>> substitution and developed as minimal a reproducer as I could create:
>
> What version of bash are you using?
>
5.0.016
On 4/20/20 1:15 AM, Jason A. Donenfeld wrote:
> Hi,
>
> I've uncovered a very unusual race condition when using process
> substitution and developed as minimal a reproducer as I could create:
What version of bash are you using?
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chauce
Hi,
I've uncovered a very unusual race condition when using process
substitution and developed as minimal a reproducer as I could create:
set -e
private="$(wg genkey)"
public="$(wg genkey | wg pubkey)"
preshared="$(wg genpsk)"
ip link del wg0 type wireguard || true
ip link add wg0 type wireguard
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