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[Bug uprobes/6829] uprobe on cloney shell hangs
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 10 Aug 2008 22:36:02 -0000
- Subject: [Bug uprobes/6829] uprobe on cloney shell hangs
- References: <20080810211029.6829.fche@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From fche at redhat dot com 2008-08-10 22:36 -------
Extra test: starting zsh under strace, with the same uprobes stap script
already running, results in this:
# strace -f zsh
execve("/bin/zsh", ["zsh"], [/* 27 vars */]) = 0
brk(0) = 0x1172d000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x2b7d4ed88000
uname({sys="Linux", node="vm-rhel5-64", ...}) = 0
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=71136, ...}) = 0
mmap(NULL, 71136, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2b7d4ed89000
close(3) = 0
open("/lib64/libdl.so.2", O_RDONLY) = 3
[...]
close(3) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x2b7d4ed9d000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x2b7d4ed9e000
arch_prctl(ARCH_SET_FS, 0x2b7d4ed9d8d0) = 0
mprotect(0x3c2f402000, 4096, PROT_READ) = 0
mprotect(0x3c33414000, 4096, PROT_READ) = 0
mprotect(0x3c2f081000, 4096, PROT_READ) = 0
mprotect(0x3c2ed49000, 16384, PROT_READ) = 0
mprotect(0x3c2e81a000, 4096, PROT_READ) = 0
munmap(0x2b7d4ed89000, 71136) = 0
--- SIGILL (Illegal instruction) @ 0 (0) ---
+++ killed by SIGILL +++
--
http://sourceware.org/bugzilla/show_bug.cgi?id=6829
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