Netscape and EAGAIN

George (greerga@nidhogg.ham.muohio.edu)
Thu, 5 Feb 1998 23:14:53 -0500 (EST)


Often I'll be browsing around with Netscape 4.04 on my laptop which goes
through PLIP to my desktop which does IP masquerading for it. When
Netscape locks up (not crashing, it does that plenty anyway), I get an
strace that looks like this sometimes:

gettimeofday({886716654, 669985}, NULL) = 0
sigreturn() = ? (mask now [])
write(24, "\372", 1) = ? ERESTARTSYS (To be restarted)
--- SIGALRM (Alarm clock) ---
gettimeofday({886716654, 719028}, NULL) = 0
sigreturn() = ? (mask now [])
write(24, "\372", 1) = ? ERESTARTSYS (To be restarted)
--- SIGALRM (Alarm clock) ---
gettimeofday({886716654, 770009}, NULL) = 0
sigreturn() = ? (mask now [])
write(24, "\372", 1) = ? ERESTARTSYS (To be restarted)
--- SIGALRM (Alarm clock) ---
gettimeofday({886716654, 819029}, NULL) = 0
sigreturn() = ? (mask now [])
write(24, "\372", 1) = ? ERESTARTSYS (To be restarted)
--- SIGALRM (Alarm clock) ---
gettimeofday({886716654, 870012}, NULL) = 0
sigreturn() = ? (mask now [])
write(24, "\372", 1) = ? ERESTARTSYS (To be restarted)
--- SIGALRM (Alarm clock) ---
gettimeofday({886716654, 919146}, NULL) = 0
sigreturn() = ? (mask now [])
write(24, "\372", 1 <unfinished ...>
(CTRL+C)

Which this error, it will repaint itself but otherwise be unresponsive to
everything except a kill -9. This one is relatively reproducible on a site
I access in Europe. (Successful 2 of 2 times so far.)

The second looks the same except for endless messages with EAGAIN and
only 'write()' trying to write to a socket.

Another (new) one is:

gettimeofday({886737787, 625465}, NULL) = 0
sigreturn() = ? (mask now [])
--- SIGALRM (Alarm clock) ---
gettimeofday({886737787, 659709}, NULL) = 0
sigreturn() = ? (mask now [])
--- SIGALRM (Alarm clock) ---
gettimeofday({886737787, 720393}, NULL) = 0
sigreturn() = ? (mask now [])
--- SIGALRM (Alarm clock) ---
gettimeofday({886737787, 774316}, NULL) = 0
sigreturn() = ? (mask now [])

Netscape was totally dead (no repaint, close, or otherwise) but it did
save configuration files on a CTRL+C. Hopefully it is just Netscape
misbehaving as usual...

Assorted system info:
Laptop Desktop
Toshiba 2105CS Custom
486DX2/50 486DX2/66
28 MB RAM 12 MB RAM
ECP Parallel SPP Parallel
Slkware 2.0.29 2.1.82

The link is only 28.8 kbps.

Is this message bad? (seen on desktop w/o masq)
kernel: prune_queue: hit acked data c=7c28cc29,7c28ecc9,7c28ecc9
(While downloading X11 from ftp.kernel.org and running Netscape.)

-George

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