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I believe enable systemtap will be very helpful for debugging.But I
encountered belowing error when enable systemtap support: emantic error: probe point mismatch at position 0 (alternatives: __nfs __scheduler __signal __tcpmib __vm _linuxmib _signal _sunrpc _syscall _vfs begin begin(number) end end(number) error error(number) generic ioblock ioblock_trace ioscheduler ioscheduler_trace ipmib irq_handler kernel kprobe kprocess linuxmib module(string) nd_syscall netdev never nfs nfsd perf process process(number) process(string) procfs procfs(string) scheduler scsi signal socket softirq stap staprun sunrpc syscall tcp tcpmib timer tty udp vfs vm workqueue): identifier 'libvirt' at :130:7 while resolving probe point libvirt.event_poll.run source: probe libvirt.event_poll.run { ^ Pass 2: analysis failed. Try again with another '--vp 01' option. Here's my environment: Ubuntu 11.04 amd64 configured --with-dtrace --enable-shared=no --with-pic(fPIC flag also tried) dtrace installed and compile probe with dtrace -64 Would somebody pls give me some advice with this systemtap issue? Thanks a lot! |
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