Displaying 6 results from an estimated 6 matches for "us_max_read".
2023 Jun 13
1
Upssched 100% CPU after updating Debian 12
...cted
behavior, or that it for some reason decides that the FD #7 (whoever that
is) raised the hand but was then silent (0 bytes read).
The next clue is 128 reads, which leads to
https://github.com/networkupstools/nut/blob/v2.8.0/clients/upssched.c#L485
`sock_read()` method which indeed does up to `US_MAX_READ==128` attempts to
read one byte from a connection (so from the CLI/child counterpart) at a
time - so that is who FD#7 gotta be.
So it is just at this point that I get stuck explaining what happens and
why :) Possibly there was a child or CLI counterpart process which died and
somehow the connectio...
2023 Jun 13
1
Upssched 100% CPU after updating Debian 12
...cted
behavior, or that it for some reason decides that the FD #7 (whoever that
is) raised the hand but was then silent (0 bytes read).
The next clue is 128 reads, which leads to
https://github.com/networkupstools/nut/blob/v2.8.0/clients/upssched.c#L485
`sock_read()` method which indeed does up to `US_MAX_READ==128` attempts to
read one byte from a connection (so from the CLI/child counterpart) at a
time - so that is who FD#7 gotta be.
So it is just at this point that I get stuck explaining what happens and
why :) Possibly there was a child or CLI counterpart process which died and
somehow the connectio...
2023 Jun 13
2
Upssched 100% CPU after updating Debian 12
...t for some reason decides that the FD #7 (whoever that
> is) raised the hand but was then silent (0 bytes read).
>
> The next clue is 128 reads, which leads to
> https://github.com/networkupstools/nut/blob/v2.8.0/clients/upssched.c#L485
> `sock_read()` method which indeed does up to `US_MAX_READ==128` attempts to
> read one byte from a connection (so from the CLI/child counterpart) at a
> time - so that is who FD#7 gotta be.
>
> So it is just at this point that I get stuck explaining what happens and
> why :) Possibly there was a child or CLI counterpart process which died a...
2023 Jun 13
2
Upssched 100% CPU after updating Debian 12
...t for some reason decides that the FD #7 (whoever that
> is) raised the hand but was then silent (0 bytes read).
>
> The next clue is 128 reads, which leads to
> https://github.com/networkupstools/nut/blob/v2.8.0/clients/upssched.c#L485
> `sock_read()` method which indeed does up to `US_MAX_READ==128` attempts to
> read one byte from a connection (so from the CLI/child counterpart) at a
> time - so that is who FD#7 gotta be.
>
> So it is just at this point that I get stuck explaining what happens and
> why :) Possibly there was a child or CLI counterpart process which died a...
2023 Jun 13
1
Upssched 100% CPU after updating Debian 12
Hi,
I ran the strace command while upssched was 100% CPU hungry. This is what I got:
1686633611.702798 read(7, "", 1) = 0 <0.000004>
1686633611.702816 read(7, "", 1) = 0 <0.000004>
1686633611.702834 pselect6(11, [7 10], NULL, NULL, {tv_sec=1, tv_nsec=0}, NULL) = 1 (in [7], left {tv_sec=0, tv_nsec=999998800}) <0.000006>
1686633611.702862 read(7,
2023 Jun 13
1
Upssched 100% CPU after updating Debian 12
Hi,
I ran the strace command while upssched was 100% CPU hungry. This is what I got:
1686633611.702798 read(7, "", 1) = 0 <0.000004>
1686633611.702816 read(7, "", 1) = 0 <0.000004>
1686633611.702834 pselect6(11, [7 10], NULL, NULL, {tv_sec=1, tv_nsec=0}, NULL) = 1 (in [7], left {tv_sec=0, tv_nsec=999998800}) <0.000006>
1686633611.702862 read(7,