HI all, I ran an strace on a "hung" mysql connection:

write(1, "mysql> ", 7) = 7
read(0, "\33", 1) = 1
read(0, "[", 1) = 1
read(0, "A", 1) = 1
write(1, "show tables;", 12) = 12
read(0, "\r", 1) = 1
write(1, "\n", 1) = 1
rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig icanon
echo ...}) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {0x8054d02, [INT], SA_RESTART}, {0x8064db3, [],
0}, 8) = 0
rt_sigaction(SIGTERM, {SIG_DFL}, {0x8064db3, [], 0}, 8) = 0
rt_sigaction(SIGQUIT, {0x8054d02, [QUIT], SA_RESTART}, {0x8064db3, [],
0}, 8) = 0
rt_sigaction(SIGALRM, {SIG_DFL}, {0x8064db3, [], 0}, 8) = 0
rt_sigaction(SIGTSTP, {SIG_DFL}, {0x8064db3, [], 0}, 8) = 0
rt_sigaction(SIGTTOU, {SIG_DFL}, {0x8064db3, [], 0}, 8) = 0
rt_sigaction(SIGTTIN, {SIG_DFL}, {0x8064db3, [], 0}, 8) = 0
rt_sigaction(SIGWINCH, {SIG_DFL}, {0x80649a0, [], 0}, 8) = 0
times({tms_utime=0, tms_stime=1, tms_cutime=0, tms_cstime=0}) =
-580542992
fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
read(3, 0x8d00440, 16384) = -1 EAGAIN (Resource temporarily
unavailable)
fcntl64(3, F_SETFL, O_RDWR) = 0
write(3, "\f\0\0\0\3show tables", 16) = 16
read(3,

the show tables never outputs anything

would anyone be so kind as to give a line by line explanation of this
strace in english?

ty
Frank