Hi, running r188436M on Xen3.3.1 (Centos5, x86_64). The reason is not to clear but seems related to heavy load on pipes + memory + network? It is repeatable with :
bsd8# dd if=/dev/zero | nc otherhost 12345 Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0xd216dd00 fault code = supervisor read, page not present instruction pointer = 0x21:0xc02e4d40 stack pointer = 0x29:0xc332aba8 frame pointer = 0x29:0xc332abfc code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 1, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 12 (irq137: xn) [thread pid 12 tid 100025 ] Stopped at xlvbd_add+0x2f70: movl 0x900(%edx,%eax,4),%edx db> bt <console hangs> On otherhost i get some stuff (between 19 and 62 MB), after nc closes down eventually otherhost# nc -l 12345 | cpipe -vt -b 65535 >/dev/null ... thru: 108930.791ms at 184.3kB/s ( 184.3kB/s avg) 19.6MB best Kai _______________________________________________ freebsd-xen@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-xen To unsubscribe, send any mail to "freebsd-xen-unsubscr...@freebsd.org"