Re: Process hanging on 6.0-STABLE
在 Friday 31 March 2006 08:38，Daniel O'Connor 写道： > On Wednesday 22 March 2006 23:49, Daniel O'Connor wrote: > > On Wednesday 22 March 2006 18:41, David Xu wrote: > > > > The problem is that every now and then the process gets stuck and > > > > becomes unkillable just after forking, ie.. > > > > > > Are you using pthreads ? > > > > Nope. > > Hmm I just found I had an FD leak - I am not sure if it's related. > > Interestingly I had ~1046 FDs open and FD_SET wasn't working properly, eg... > fd_setfds; > int fd; > > fd = 1046; > FD_ZERO(&fds); > FD_SET(fd, &fds); > > Results in fds being empty :( > > Does anyone know if that is expected behaviour? And whether this problem could > cause the second one (eg tickle a bug). > > Thanks. > > -- > Daniel O'Connor software and network engineer > for Genesis Software - http://www.gsoft.com.au > "The nice thing about standards is that there > are so many of them to choose from." > -- Andrew Tanenbaum > GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C > In /sys/sys/select.h : #ifndef FD_SETSIZE #define FD_SETSIZE 1024U #endif so you should define FD_SETSIZE if you have fd which is larger than 1024. Regards, David Xu ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Process hanging on 6.0-STABLE
On Wednesday 22 March 2006 23:49, Daniel O'Connor wrote: > On Wednesday 22 March 2006 18:41, David Xu wrote: > > > The problem is that every now and then the process gets stuck and > > > becomes unkillable just after forking, ie.. > > > > Are you using pthreads ? > > Nope. Hmm I just found I had an FD leak - I am not sure if it's related. Interestingly I had ~1046 FDs open and FD_SET wasn't working properly, eg... fd_set fds; int fd; fd = 1046; FD_ZERO(&fds); FD_SET(fd, &fds); Results in fds being empty :( Does anyone know if that is expected behaviour? And whether this problem could cause the second one (eg tickle a bug). Thanks. -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C pgpMhLAF0G4Tg.pgp Description: PGP signature
Re: Process hanging on 6.0-STABLE
On Wednesday 22 March 2006 18:41, David Xu wrote: > > The problem is that every now and then the process gets stuck and becomes > > unkillable just after forking, ie.. > > Are you using pthreads ? Nope. -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C pgpnn4HoQij9A.pgp Description: PGP signature
Re: Process hanging on 6.0-STABLE
在 Wednesday 22 March 2006 15:25，Daniel O'Connor 写道： > Hi, > I work for a small company that makes radar systems for research > organisations and we use FreeBSD on the PCs for data acquisition and > processing. We have recently shifted to FreeBSD6/amd64 and one machine in > particular is exhibiting a strange problem. > > The acquisition process is a Tcl interpreter with a largish chunk of C code > which talks to the hardware (via RS485 and a custom PCI card). Once the > system is set up it streams data back via the PCI card and runs it through > various data processors (eg dump raw data to disk, FFT, winds, etc..). > > The actual forking of processes is handled in Tcl and the C code only gets > involved to write the data out (to an FD the Tcl layer keeps). > > The problem is that every now and then the process gets stuck and becomes > unkillable just after forking, ie.. Are you using pthreads ? David Xu ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
