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| author | Haiqing Bai <Haiqing.Bai@windriver.com> | 2019-10-24 10:33:04 +0800 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2019-10-28 05:31:42 +0000 |
| commit | 6d77529d62248d77aff8e293905d9a156997a12c (patch) | |
| tree | cff87894652c720058c6ef53770f95ee3e4c8fed /meta/recipes-devtools/python | |
| parent | 85903df1c1545da372c556cf12066d535355465a (diff) | |
| download | poky-6d77529d62248d77aff8e293905d9a156997a12c.tar.gz | |
unfs3: fixed the issue that unfsd consumes 100% CPU
The 'accept' function on the socket of unfsd daemon
is always in below error state:
accept(4, 0x7ffd5e6dddc0, [128]) = -1 EINVAL (Invalid argument)
accept(6, 0x7ffd5e6dddc0, [128]) = -1 EINVAL (Invalid argument)
And 'strace -c -p <the pid of unfsd>' shows:
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
70.87 0.005392 0 513886 513886 accept
29.13 0.002216 0 256943 poll
This error state is in the 'for' loop of the daemon, so it consumes 100%
CPU. The reason is that 'listen' is not called for the TCP socket before
'accept'. Actually the called 'svc_tli_create' from libtirpc will not call
'listen' on a bound socket.
(From OE-Core rev: 1f6784d2e839f81749d21ad1b615a9f7bb0e64d6)
Signed-off-by: Haiqing Bai <Haiqing.Bai@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-devtools/python')
0 files changed, 0 insertions, 0 deletions