runtime: incorrect backtrace for blocked goroutine #4150
Description
What steps will reproduce the problem?
1. go run bad_stack.go
2. netstat -na | grep pprof
3. echo -e "GET /debug/pprof/goroutine?debug=1 HTTP/1.0\n" | socat STDIO
ABSTRACT:/pprof/<pid>
4. kill -s QUIT <pid>
What is the expected output?
The pprof stack should put the foo() routine at the select{}, but puts it at the next
line instead.
What do you see instead?
// Goroutine profile contains this:
1 @ 0x41205c 0x4120c6 0x403770 0x403858 0x400cab 0x410da0
# 0x400cab main.foo+0x5b /home/gustav/bad_stack2.go:27
Which compiler are you using (5g, 6g, 8g, gccgo)?
6g
Which operating system are you using?
Linux 3.4.7-1.fc16.x86_64 #1 SMP Mon Jul 30 16:37:23 UTC 2012 x86_64 x86_64 x86_64
GNU/Linux
Which version are you using? (run 'go version')
edge
Please provide any additional information below.
Attachments:
- bad_stack2.go (716 bytes)