Package: systemtap
Version: 1.7-1+deb7u1
Severity: normal
Dear Maintainer,
* What led up to the situation?
I tried to compile a cache_hit_ratio.stp
----------------------------------------------
#!/usr/bin/env stap
global total_bytes, disk_bytes
probe vfs.read.return {
if (bytes_to_read > 0 && devname != "N/A") {
total_bytes += bytes_to_read
}
}
probe ioblock.request {
mydevname = substr(devname,0,3)
if (rw == 0 && size > 0 && devname != "N/A" && mydevname != "dm-") {
disk_bytes += size
}
}
# stops the script
probe timer.s(30) {
exit()
}
probe end {
if(total_bytes == 0)
hit_rate = 10000
else if(total_bytes < disk_bytes)
hit_rate = 0
else
hit_rate = 10000 * (total_bytes - disk_bytes) / total_bytes
printf("%d.%02d\n", hit_rate/100, hit_rate%100)
}
----------------------------------------------
I used the following command to compile:
stap -vv -p 4 -m cache_hit_ratio cache_hit_ratio.stp
----------------------------------------------
I received the following output:
Systemtap translator/driver (version 1.7/0.152 Debian version 1.7-1+deb7u1
(stable))
Copyright (C) 2005-2012 Red Hat, Inc. and others
This is free software; see the source for copying conditions.
enabled features: AVAHI LIBSQLITE3 NSS BOOST_SHARED_PTR TR1_UNORDERED_MAP NLS
Created temporary directory "/tmp/stapviBYQX"
Session arch: x86_64 release: 3.2.0-4-amd64
Searched: " /usr/share/systemtap/tapset/x86_64/*.stp ", found: 4, processed: 4
Searched: " /usr/share/systemtap/tapset/*.stp ", found: 77, processed: 77
Pass 1: parsed user script and 81 library script(s) using
78036virt/22508res/2544shr kb, in 140usr/20sys/160real ms.
Attempting to extract kernel debuginfo build ID from
/lib/modules/3.2.0-4-amd64/build/vmlinux.id
Attempting to extract kernel debuginfo build ID from /sys/kernel/notes
probe vfs_read@/build/linux-tzQDap/linux-3.2.63/fs/read_write.c:364 kernel
reloc=.dynamic pc=0xffffffff810fb1a8
probe
generic_make_request@/build/linux-tzQDap/linux-3.2.63/block/blk-core.c:1611
kernel reloc=.dynamic pc=0xffffffff8119a054
probe
generic_make_request@/build/linux-tzQDap/linux-3.2.63/block/blk-core.c:1611
kernel reloc=.dynamic pc=0xffffffff8119a0a4
semantic error: failed to retrieve location attribute for local 'bio'
(dieoffset: 0x1e58415): identifier '$bio' at
/usr/share/systemtap/tapset/ioblock.stp:103:33
source: devname = __bio_devname($bio)
^
semantic error: failed to retrieve location attribute for local 'bio'
(dieoffset: 0x1e58415): identifier '$bio' at :108:14
source: rw = $bio->bi_rw
^
semantic error: failed to retrieve location attribute for local 'bio'
(dieoffset: 0x1e58415): identifier '$bio' at :114:16
source: size = $bio->bi_size
^
Pass 2: analyzed script: 6 probe(s), 33 function(s), 7 embed(s), 2 global(s)
using 274228virt/119048res/7676shr kb, in 1540usr/220sys/1765real ms.
Pass 2: analysis failed. Try again with another '--vp 01' option.
Running rm -rf /tmp/stapviBYQX
Spawn waitpid result (0x0): 0
Exit error code: 1
----------------------------------------------
I expected the module to compile, as did with all the previous version of
kernels
Additionally to the packages listed below also the kernel debuginfo package is
installed:
ii linux-image-3.2.0-4-amd64-dbg 3.2.63-2
-- System Information:
Debian Release: 7.7
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages systemtap depends on:
ii libavahi-client3 0.6.31-2
ii libavahi-common3 0.6.31-2
ii libc6 2.13-38+deb7u6
ii libdw1 0.152-1+wheezy1
ii libelf1 0.152-1+wheezy1
ii libgcc1 1:4.7.2-5
ii libnspr4 2:4.9.2-1+deb7u2
ii libnss3 2:3.14.5-1+deb7u2
ii libsqlite3-0 3.7.13-1+deb7u1
ii libstdc++6 4.7.2-5
ii make 3.81-8.2
ii systemtap-common 1.7-1+deb7u1
ii systemtap-runtime 1.7-1+deb7u1
systemtap recommends no packages.
Versions of packages systemtap suggests:
pn linux-debug <none>
ii linux-headers-3.2.0-4-amd64 [linux-headers] 3.2.63-2
ii linux-image-3.2.0-4-amd64 [linux-image] 3.2.63-2
pn systemtap-doc <none>
pn vim-addon-manager <none>
-- no debconf information
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