Best is to put a breakpoint and start single stepping and read those variable values
On Wed, Jul 22, 2020 at 5:57 PM Rick Payne <[email protected]> wrote: > > Trying to characterise some performance stuff, I thought I'd run socat > under OSv however it panics: > > $ sudo scripts/run.py -n -e 'socat tcp4-listen:6971 open:/dev/null'OSv > v0.55.0 > eth0: 192.168.122.76 > Booted up in 3245.70 ms > Cmdline: socat tcp4-listen:6971 open:/dev/null > Assertion failed: type == SOCK_STREAM (libc/af_local.cc: > socketpair_af_local: 101) > > [backtrace] > 0x00000000402228ae <abort(char const*, ...)+280> > 0x0000000040222917 <__assert_fail+64> > 0x00000000406fb1d0 <socketpair_af_local+61> > 0x0000000040246c37 <socketpair+95> > 0x0000100000034587 <???+214407> > 0x657473696c2d346f <???+1814901871> > > The particular function in socat which triggers this is: > > static int diag_sock_pair(void) { > int handlersocks[2]; > > if (socketpair(AF_UNIX, SOCK_DGRAM, 0, handlersocks) < 0) { > diag_sock_send = -1; > diag_sock_recv = -1; > return -1; > } > diag_sock_send = handlersocks[1]; > diag_sock_recv = handlersocks[0]; > return 0; > } > > And in OSv: > > #5 0x00000000406fb1d1 in socketpair_af_local (type=2, proto=0, > sv=0x200000700b20) at libc/af_local.cc:101 > 101 assert(type == SOCK_STREAM); > > Not sure why this restriction exists, and I've changed my local socat > to use SOCK_STREAM - but just thought we should note a difference > between linux and OSv here... > > Rick > > -- > You received this message because you are subscribed to the Google Groups > "OSv Development" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/osv-dev/f604ee0d7c79713f24744c47903f5e5515bfbb3f.camel%40rossfell.co.uk > . > -- You received this message because you are subscribed to the Google Groups "OSv Development" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/osv-dev/CAKUaUn6tKXEvQZdB9ymzaBGFEj%3DUwRNQGqVMPqk439v7CpoipA%40mail.gmail.com.
