* [Bug translator/6950] New: buildok/twentyfive.stp fails with elfutils 0.137
@ 2008-10-07 14:03 mjw at redhat dot com
2008-10-29 16:45 ` [Bug translator/6950] " mjw at redhat dot com
` (9 more replies)
0 siblings, 10 replies; 12+ messages in thread
From: mjw at redhat dot com @ 2008-10-07 14:03 UTC (permalink / raw)
To: systemtap
On 2.6.18-92.1.1.el5 (x86) and 2.6.18-92.1.13.el5 (x86_64) kernels, but not on
2.6.26.5-45.fc9.x86_64, buildok/twentyfive.stp fails with elfutils 0.137 plus
the two recommended patches (elfutils-0.137-fixes.patch from the
elfutils-0.137-2.fc9.src.rpm and elfutils-0.137-segment-fix.patch from bug
#6928) as follows:
stap -p4 /home/mark/src/systemtap/testsuite/buildok/twentyfive.stp
semantic error: libdwfl failure (dwfl_getmodules): no error while resolving prob
e point module("ext3").function("ext3_check_dir_entry")?
This passes with elfutils-0.135.
The 'no error' comes from dwfl_getmodules() given a positive offset to continue,
after which it returns -1, but doesn't set dwfl_errno.
--
Summary: buildok/twentyfive.stp fails with elfutils 0.137
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: translator
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: mjw at redhat dot com
CC: roland at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=6950
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* [Bug translator/6950] buildok/twentyfive.stp fails with elfutils 0.137
2008-10-07 14:03 [Bug translator/6950] New: buildok/twentyfive.stp fails with elfutils 0.137 mjw at redhat dot com
@ 2008-10-29 16:45 ` mjw at redhat dot com
2008-11-09 11:05 ` risrajak at linux dot vnet dot ibm dot com
` (8 subsequent siblings)
9 siblings, 0 replies; 12+ messages in thread
From: mjw at redhat dot com @ 2008-10-29 16:45 UTC (permalink / raw)
To: systemtap
------- Additional Comments From mjw at redhat dot com 2008-10-29 16:45 -------
Need to come up with a simpler testcase. Can try to reproduce with a simple
iteration case, e.g. elfutils dwflmodtest or eu-unstrip -n. with -K<version>
you can check the problem kernels (offline mode).
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* [Bug translator/6950] buildok/twentyfive.stp fails with elfutils 0.137
2008-10-07 14:03 [Bug translator/6950] New: buildok/twentyfive.stp fails with elfutils 0.137 mjw at redhat dot com
2008-10-29 16:45 ` [Bug translator/6950] " mjw at redhat dot com
@ 2008-11-09 11:05 ` risrajak at linux dot vnet dot ibm dot com
2008-11-12 16:28 ` mjw at redhat dot com
` (7 subsequent siblings)
9 siblings, 0 replies; 12+ messages in thread
From: risrajak at linux dot vnet dot ibm dot com @ 2008-11-09 11:05 UTC (permalink / raw)
To: systemtap
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |risrajak at linux dot vnet
| |dot ibm dot com
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* [Bug translator/6950] buildok/twentyfive.stp fails with elfutils 0.137
2008-10-07 14:03 [Bug translator/6950] New: buildok/twentyfive.stp fails with elfutils 0.137 mjw at redhat dot com
2008-10-29 16:45 ` [Bug translator/6950] " mjw at redhat dot com
2008-11-09 11:05 ` risrajak at linux dot vnet dot ibm dot com
@ 2008-11-12 16:28 ` mjw at redhat dot com
2008-11-12 20:41 ` mjw at redhat dot com
` (6 subsequent siblings)
9 siblings, 0 replies; 12+ messages in thread
From: mjw at redhat dot com @ 2008-11-12 16:28 UTC (permalink / raw)
To: systemtap
------- Additional Comments From mjw at redhat dot com 2008-11-12 16:27 -------
No obvious anomalies were found with either dwflmodtest or eu-unstrip.
--
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* [Bug translator/6950] buildok/twentyfive.stp fails with elfutils 0.137
2008-10-07 14:03 [Bug translator/6950] New: buildok/twentyfive.stp fails with elfutils 0.137 mjw at redhat dot com
` (2 preceding siblings ...)
2008-11-12 16:28 ` mjw at redhat dot com
@ 2008-11-12 20:41 ` mjw at redhat dot com
2008-11-14 10:13 ` mjw at redhat dot com
` (5 subsequent siblings)
9 siblings, 0 replies; 12+ messages in thread
From: mjw at redhat dot com @ 2008-11-12 20:41 UTC (permalink / raw)
To: systemtap
------- Additional Comments From mjw at redhat dot com 2008-11-12 20:40 -------
Oneline reproducer:
$ stap -e 'probe module("ext3").function("ext3_check_dir_entry")
{print($ext3_filetype_table)}'
semantic error: libdwfl failure (dwfl_getmodules): no error while resolving
probe point module("ext3").function("ext3_check_dir_entry")
Pass 2: analysis failed. Try again with more '-v' (verbose) options.
Adding some stap -vvv will give (at the end):
[...]
focused on module 'ext3 = [0x559f200-0x55c2051, bias 0x0] file
/usr/lib/debug/lib/modules/2.6.18-92.1.13.el5/kernel/fs/ext3/ext3.ko.debug ELF
machine x86_64 (code 62)
focused on module 'ext3'
selected function ext3_check_dir_entry
probe ext3_check_dir_entry@fs/ext3/dir.c:68 module=ext3 reloc=.text
section=.text pc=0x55a0b7c
finding location for local 'ext3_filetype_table' near address 55a0b7c, module bias 0
semantic error: libdwfl failure (dwfl_getmodules): no error while resolving
probe point module("ext3").function("ext3_check_dir_entry")
The ext3_filetype_table is defined in the same file (fs/ext3/dir.c) as the
function being probed as:
static unsigned char ext3_filetype_table[] = {
DT_UNKNOWN, DT_REG, DT_DIR, DT_CHR, DT_BLK, DT_FIFO, DT_SOCK, DT_LNK
};
--
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* [Bug translator/6950] buildok/twentyfive.stp fails with elfutils 0.137
2008-10-07 14:03 [Bug translator/6950] New: buildok/twentyfive.stp fails with elfutils 0.137 mjw at redhat dot com
` (3 preceding siblings ...)
2008-11-12 20:41 ` mjw at redhat dot com
@ 2008-11-14 10:13 ` mjw at redhat dot com
2008-11-14 10:29 ` mjw at redhat dot com
` (4 subsequent siblings)
9 siblings, 0 replies; 12+ messages in thread
From: mjw at redhat dot com @ 2008-11-14 10:13 UTC (permalink / raw)
To: systemtap
------- Additional Comments From mjw at redhat dot com 2008-11-14 10:11 -------
This seems fixed in elfutils-0.137-3.fc9.x86_64 (against systemtap git trunk
588b83de, 2.6.26.6-79.fc9.x86_64).
--
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* [Bug translator/6950] buildok/twentyfive.stp fails with elfutils 0.137
2008-10-07 14:03 [Bug translator/6950] New: buildok/twentyfive.stp fails with elfutils 0.137 mjw at redhat dot com
` (4 preceding siblings ...)
2008-11-14 10:13 ` mjw at redhat dot com
@ 2008-11-14 10:29 ` mjw at redhat dot com
2008-11-14 10:45 ` mjw at redhat dot com
` (3 subsequent siblings)
9 siblings, 0 replies; 12+ messages in thread
From: mjw at redhat dot com @ 2008-11-14 10:29 UTC (permalink / raw)
To: systemtap
------- Additional Comments From mjw at redhat dot com 2008-11-14 10:28 -------
Created an attachment (id=3064)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=3064&action=view)
Fedora 9 srpm elfutils-0.137-fixes.patch
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* [Bug translator/6950] buildok/twentyfive.stp fails with elfutils 0.137
2008-10-07 14:03 [Bug translator/6950] New: buildok/twentyfive.stp fails with elfutils 0.137 mjw at redhat dot com
` (5 preceding siblings ...)
2008-11-14 10:29 ` mjw at redhat dot com
@ 2008-11-14 10:45 ` mjw at redhat dot com
2008-11-26 21:35 ` fche at redhat dot com
` (2 subsequent siblings)
9 siblings, 0 replies; 12+ messages in thread
From: mjw at redhat dot com @ 2008-11-14 10:45 UTC (permalink / raw)
To: systemtap
------- Additional Comments From mjw at redhat dot com 2008-11-14 10:44 -------
The fix might not have been the elfutils update, but something else. It still
fails on kernel-2.6.18-123.el5.x86_64 with the same systemtap and elfutils
versions as in comment #4.
--
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* [Bug translator/6950] buildok/twentyfive.stp fails with elfutils 0.137
2008-10-07 14:03 [Bug translator/6950] New: buildok/twentyfive.stp fails with elfutils 0.137 mjw at redhat dot com
` (6 preceding siblings ...)
2008-11-14 10:45 ` mjw at redhat dot com
@ 2008-11-26 21:35 ` fche at redhat dot com
2008-11-26 23:38 ` roland at gnu dot org
2008-11-27 1:20 ` fche at redhat dot com
9 siblings, 0 replies; 12+ messages in thread
From: fche at redhat dot com @ 2008-11-26 21:35 UTC (permalink / raw)
To: systemtap
------- Additional Comments From fche at redhat dot com 2008-11-26 21:34 -------
Problem still occurs with f9:
Linux super.elastic.org 2.6.27.5-41.fc9.x86_64.debug #1 SMP Thu Nov 13 20:05:34
EST 2008 x86_64 x86_64 x86_64 GNU/Linux
[14:46:47] % grep ext3_check_dir /proc/kallsyms
ffffffffa00329fc t ext3_check_dir_entry [ext3]
./stap -V
SystemTap translator/driver (version 0.8/0.137 git branch master, commit 8d59b39f)
(from systemtap.log)
spawn1 stap -p4
/home/fche/Private/DEVEL/DEVEL-systemtap/git/systemtap2/testsuite/buildok/twentyfive.stp
semantic error: libdwfl failure (dwfl_getmodules): no error while resolving
probe point module("ext3").function("ext3_check_dir_entry")?
Pass 2: analysis failed. Try again with more '-v' (verbose) options.
--
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* [Bug translator/6950] buildok/twentyfive.stp fails with elfutils 0.137
2008-10-07 14:03 [Bug translator/6950] New: buildok/twentyfive.stp fails with elfutils 0.137 mjw at redhat dot com
` (7 preceding siblings ...)
2008-11-26 21:35 ` fche at redhat dot com
@ 2008-11-26 23:38 ` roland at gnu dot org
2008-11-27 1:20 ` fche at redhat dot com
9 siblings, 0 replies; 12+ messages in thread
From: roland at gnu dot org @ 2008-11-26 23:38 UTC (permalink / raw)
To: systemtap
------- Additional Comments From roland at gnu dot org 2008-11-26 23:37 -------
Try http://koji.fedoraproject.org/scratch/roland/task_953821/ and see if it
works woth those elfutils-libs
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* [Bug translator/6950] buildok/twentyfive.stp fails with elfutils 0.137
2008-10-07 14:03 [Bug translator/6950] New: buildok/twentyfive.stp fails with elfutils 0.137 mjw at redhat dot com
` (8 preceding siblings ...)
2008-11-26 23:38 ` roland at gnu dot org
@ 2008-11-27 1:20 ` fche at redhat dot com
9 siblings, 0 replies; 12+ messages in thread
From: fche at redhat dot com @ 2008-11-27 1:20 UTC (permalink / raw)
To: systemtap
------- Additional Comments From fche at redhat dot com 2008-11-27 01:19 -------
(In reply to comment #8)
> Try http://koji.fedoraproject.org/scratch/roland/task_953821/ and see if it
> works woth those elfutils-libs
Sure does (on f9 x86-64), thanks!
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|systemtap at sources dot |roland at redhat dot com
|redhat dot com |
Status|NEW |ASSIGNED
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* [Bug translator/6950] buildok/twentyfive.stp fails with elfutils 0.137
[not found] <bug-6950-6586@http.sourceware.org/bugzilla/>
@ 2011-03-16 21:36 ` roland at gnu dot org
0 siblings, 0 replies; 12+ messages in thread
From: roland at gnu dot org @ 2011-03-16 21:36 UTC (permalink / raw)
To: systemtap
http://sourceware.org/bugzilla/show_bug.cgi?id=6950
Roland McGrath <roland at gnu dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC|roland at redhat dot com |
AssignedTo|roland at redhat dot com |systemtap at sourceware dot
| |org
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2008-10-07 14:03 [Bug translator/6950] New: buildok/twentyfive.stp fails with elfutils 0.137 mjw at redhat dot com
2008-10-29 16:45 ` [Bug translator/6950] " mjw at redhat dot com
2008-11-09 11:05 ` risrajak at linux dot vnet dot ibm dot com
2008-11-12 16:28 ` mjw at redhat dot com
2008-11-12 20:41 ` mjw at redhat dot com
2008-11-14 10:13 ` mjw at redhat dot com
2008-11-14 10:29 ` mjw at redhat dot com
2008-11-14 10:45 ` mjw at redhat dot com
2008-11-26 21:35 ` fche at redhat dot com
2008-11-26 23:38 ` roland at gnu dot org
2008-11-27 1:20 ` fche at redhat dot com
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2011-03-16 21:36 ` roland at gnu dot org
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