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| author | Peter Wu <peter@lekensteyn.nl> | 2016-05-04 11:13:40 +0200 |
|---|---|---|
| committer | Peter Wu <peter@lekensteyn.nl> | 2016-06-05 16:32:47 +0200 |
| commit | 1b2cedebc035fad3ebe380c67e3d9a2c2c7e0742 (patch) | |
| tree | 045d7e41c886bf4cdf2d4b19fdabf8ce8c0afb5d /replay | |
| parent | 62c2b5958d8695db1166d1af89a353482801d56f (diff) | |
| download | qemu-gdbstub-fixes.tar.gz | |
gdbstub: set listen backlog to 1gdbstub-fixes
Avoid possible connection drops on Linux (when tcp_syncookies is
disabled) or fallbacks to SYN cookies with the following kernel warning:
TCP: request_sock_TCP: Possible SYN flooding on port 1234. Sending cookies. Check SNMP counters.
Since Linux 4.4 (ef547f2ac16b "tcp: remove max_qlen_log"), a backlog of
zero is really treated as the "queue length for completely established
sockets waiting to be accepted" (listen(2)). This is apparently a valid
interpretation of an "implementation-defined minimum value" for a
backlog value of 0 (listen(3p)). Previous kernels would use 8 as
minimum value, but that is no longer the case.
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Diffstat (limited to 'replay')
0 files changed, 0 insertions, 0 deletions