On Mon, 28 Nov 2005, Robert Watson wrote:
rwatson 2005-11-28 18:09:03 UTC
FreeBSD src repository
Modified files:
sys/kern uipc_socket.c
Log:
Break out functionality in sosend() responsible for building mbuf
chains and copying in mbufs from the body of the send logic, creating
a new function sosend_copyin(). This changes makes sosend() almost
readable, and will allow the same logic to be used by tailored socket
send routines.
MFC after: 1 month
Reviewed by: andre, glebius
Revision Changes Path
1.253 +170 -141 src/sys/kern/uipc_socket.c
there seems to be some locking problem. I can easily reproduce that
with a dmesg of a bootverbose boot on a ssh connection:
System call write returning with the following locks held:
exclusive sleep mutex so_snd r = 0 (0xffffff0094a78670) locked @
/local/building/freebsd/HEAD/sys/kern/uipc_socket.c:884
panic: witness_warn
KDB: enter: panic
[thread pid 523 tid 100061 ]
Stopped at kdb_enter+0x31: leave
--
Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT
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