On March 25, 2007 03:49:46 pm Giorgos Keramidas wrote: > On 2007-03-25 13:48, Nicolas Blais <nb_root_at_videotron.ca> wrote: > > > The panic happens after a small amount of network activity, inside > > > the TCP SACK code: > > > > > > ----------------------------------------------------------------------- > > >---- Disabling SACK lets me use my laptop again: > > > > > > net.inet.tcp.sack.enable=0 > > > > > > without any panics. > > > > Same here. If you want to quickly crash your system, > > net.inet.tcp.sack.enable=1 and start a torrent :) > > > > I couldn't find what was causing my desktop to crash until I STOPPED > > trying to restart my torrent after boot :) . Though > > net.inet.tcp.sack.enable=0 fixed it. > > Rebuilding a kernel will take a while here. If you can try reverting > the following commit before I do, let me know if it fixes the panic. > > % andre 2007-03-23 18:33:21 UTC > % > % FreeBSD src repository > % > % Modified files: > % sys/netinet tcp_input.c tcp_sack.c > % Log: > % Bring SACK option handling in tcp_dooptions() in line with all other > % options and ajust users accordingly. > % > % Revision Changes Path > % 1.326 +7 -4 src/sys/netinet/tcp_input.c > % 1.35 +1 -0 src/sys/netinet/tcp_sack.c Done. I reverted tcp_input.c to 1.325 and tcp_sack.c to 1.34. I was able to start many torrents without a panic. I believe the revert fixed the problem, as previously, just starting 1 torrent would panic (unless net.inet.tcp.sack.enable=0) , now I have 5 running fine. Nicolas. -- FreeBSD 7.0-CURRENT #18: Sun Mar 25 16:03:50 EDT 2007 nicblais_at_clk01a:/usr/obj/usr/src/sys/CLK01A PGP? : http://plaintext.clkroot.net/security/nb_root.asc
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