[qmailtoaster] [isoqlog] Segmentation fault

[Wojciech Gabor]

I have isoqlog-toaster-2.1-1.3.2 on Centos-4.4

Some logfiles in /var/log/qmail/send make sementation fault of isoqlog.
Where looking for solve?
I was looking by strace but no interesting things found.
<code>
(...)
close(4) = 0
munmap(0x2a968fd000, 4096) = 0
open("/var/log/qmail/send/current", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=140401, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x2a968fd000
read(4, "@4000000045a69d3e16dce5cc delive"..., 4096) = 4096
read(4, " qp 8341 uid 89\***@4000000045a69d5"..., 4096) = 4096
read(4, "e 0/60\***@4000000045a69d760ddf912c"..., 4096) = 4096
read(4, "s: local 0/20 remote 0/60\***@40000"..., 4096) = 4096
read(4, "n./<***@gmail.com>_66.249.9"..., 4096) = 4096
read(4, "20c new msg 8749500\***@4000000045a"..., 4096) = 4096
read(4, "p 10054 uid 89\***@4000000045a69e35"..., 4096) = 4096
read(4, "id_0+0+1/\***@4000000045a69e6936f94"..., 4096) = 4096
read(4, "749620 to local zjo.lo.pl-stypen"..., 4096) = 4096
read(4, "c.com> qp 11314 uid 89\***@40000000"..., 4096) = 4096
read(4, ".pl-***@chodecz.pl\***@4000000045"..., 4096) = 4096
read(4, "5b09cc status: local 0/20 remote"..., 4096) = 4096
read(4, "00045a69f2400314354 new msg 8749"..., 4096) = 4096
read(4, "4 status: local 1/20 remote 0/60"..., 4096) = 4096
read(4, "0/20 remote 0/60\***@4000000045a69f"..., 4096) = 4096
read(4, "8749620: bytes 66510 from <speed"..., 4096) = 4096
read(4, "+0+1/\***@4000000045a6a01333107ca4 "..., 4096) = 4096
read(4, "6a0390fb4512c new msg 8749500\***@4"..., 4096) = 4096
read(4, "\***@4000000045a6a04d1afe7044 deliv"..., 4096) = 4096
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
</code>

[Eric "Shubes"]

Post by Wojciech Gabor
I have isoqlog-toaster-2.1-1.3.2 on Centos-4.4
Some logfiles in /var/log/qmail/send make sementation fault of isoqlog.
Where looking for solve?
I was looking by strace but no interesting things found.
<code>
(...)
close(4) = 0
munmap(0x2a968fd000, 4096) = 0
open("/var/log/qmail/send/current", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=140401, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x2a968fd000
read(4, "749620 to local zjo.lo.pl-stypen"..., 4096) = 4096
read(4, "5b09cc status: local 0/20 remote"..., 4096) = 4096
read(4, "00045a69f2400314354 new msg 8749"..., 4096) = 4096
read(4, "4 status: local 1/20 remote 0/60"..., 4096) = 4096
read(4, "8749620: bytes 66510 from <speed"..., 4096) = 4096

What do the 4096 bytes of this point in the log contain? Anything peculiar?
Is the log file it's choking on a 'normal' (*.s) file?

Post by Wojciech Gabor
+++ killed by SIGSEGV +++
</code>

[Wojciech Gabor]

Post by Eric "Shubes"

Post by Wojciech Gabor
I have isoqlog-toaster-2.1-1.3.2 on Centos-4.4
Some logfiles in /var/log/qmail/send make sementation fault of isoqlog.
Where looking for solve?
I was looking by strace but no interesting things found.
<code>
(...)
close(4) = 0
munmap(0x2a968fd000, 4096) = 0
open("/var/log/qmail/send/current", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=140401, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0x2a968fd000
read(4, "749620 to local zjo.lo.pl-stypen"..., 4096) = 4096
read(4, "5b09cc status: local 0/20 remote"..., 4096) = 4096
read(4, "00045a69f2400314354 new msg 8749"..., 4096) = 4096
read(4, "4 status: local 1/20 remote 0/60"..., 4096) = 4096
read(4, "8749620: bytes 66510 from <speed"..., 4096) = 4096

What do the 4096 bytes of this point in the log contain? Anything
peculiar? Is the log file it's choking on a 'normal' (*.s) file?

It's normal *.s files.
This error is with some files, not all.
I make "strace -o ~/rob/isoqlog.trace -s 4096 isoqlog" and I found that this
fault is until read logfile. Isoqlog stop read in random place.

[Eric "Shubes"]

Post by Wojciech Gabor

Post by Eric "Shubes"

Post by Wojciech Gabor
I have isoqlog-toaster-2.1-1.3.2 on Centos-4.4
Some logfiles in /var/log/qmail/send make sementation fault of isoqlog.
Where looking for solve?
I was looking by strace but no interesting things found.
<code>
(...)
close(4) = 0
munmap(0x2a968fd000, 4096) = 0
open("/var/log/qmail/send/current", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=140401, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0x2a968fd000
read(4, "749620 to local zjo.lo.pl-stypen"..., 4096) = 4096
read(4, "5b09cc status: local 0/20 remote"..., 4096) = 4096
read(4, "00045a69f2400314354 new msg 8749"..., 4096) = 4096
read(4, "4 status: local 1/20 remote 0/60"..., 4096) = 4096
read(4, "8749620: bytes 66510 from <speed"..., 4096) = 4096

What do the 4096 bytes of this point in the log contain? Anything
peculiar? Is the log file it's choking on a 'normal' (*.s) file?

It's normal *.s files.
This error is with some files, not all.
I make "strace -o ~/rob/isoqlog.trace -s 4096 isoqlog" and I found that this
fault is until read logfile. Isoqlog stop read in random place.

Sorry, I'm stumped.
Anyone have an idea?

[Alexey Loukianov]

Post by Eric "Shubes"
Sorry, I'm stumped.
Anyone have an idea?

As always when coupling with bugs, we need to know whether is it
reproducible or not. Correct decision will be to targzip the logs
causing the sigfault, and send them to the developers, so they will be
able to check if error will show up on their system.

Another question is who is the maintainer of isoqlog source code? It
seems to me that Erik, Nick or Jean-Paul wouldn't waste their time
finding up and correcting the bugs in foreign code. So, most probably
complaints should go to the author of isoqlog, with a digest about the
results of that complaints sent to this list for us to track the bug
being fixed.

[Harry Zink]

What's the easiest way to delete, comprehensively, all logfiles that
isoqlog uses?

I'm constantly getting the segmentation fault errors, no one else on
the list (except two other people) appear affected by it, so I want
to see if it's something about my log-files, and just toast them all
and see what happens.

Can someone at least help with some convenient and effective way to
get rid of all the log files, please?

Harry

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[Jake Vickers]

Post by Harry Zink
What's the easiest way to delete, comprehensively, all logfiles that
isoqlog uses?
I'm constantly getting the segmentation fault errors, no one else on
the list (except two other people) appear affected by it, so I want to
see if it's something about my log-files, and just toast them all and
see what happens.
Can someone at least help with some convenient and effective way to
get rid of all the log files, please?

I've never really looked at how isoqlog was executed, but here's the

Post by Harry Zink
#!/bin/sh
VPOPMAIL=/home/vpopmail/domains
ISOQLOG=`which isoqlog`
ISODOMAINS=/etc/isoqlog/isoqlog.domains
RM=`which rm`
TOUCH=`which touch`
CHOWN=`which chown`
CHMOD=`which chmod`
# Remove old domains
[ -f $ISODOMAINS ] && $RM -rf $ISODOMAINS
# Regenerate the file
for i in `ls $VPOPMAIL`; do
echo "$i" >> $ISODOMAINS;
done
# Execute the program
$ISOQLOG 1>/dev/null 2>/dev/null
# Correct permissions
$CHOWN -R apache:apache /usr/share/toaster/htdocs/isoqlog

Which looks like it deletes the domains list, isoqlog.domains and then
regenerates the file via a ls command of /home/vpopmail/domains.
From looking at the config in /etc/isoqlog it looks like it's using the

Post by Harry Zink
logstore = "/var/log/qmail/send"

So I would try moving those files somewhere else and then seeing if it
still gives you the error.

[Harry Zink]

Post by Jake Vickers
So I would try moving those files somewhere else and then seeing if
it still gives you the error.

Moved them out, restarted qmail, and so far the segfaults seem to
have gone away.....

---
George E. Nichols
"The universal aptitude for ineptitude makes any human accomplishment
an incredible miracle."

[Johannes Weberhofer, Weberhofer GmbH]

Harry,

have you tried to increase the "softlimit" in the affected "/var/qmail/supervise/*/run" file. This could prevent strange errors like segfaults.

Johannes

Post by Harry Zink
What's the easiest way to delete, comprehensively, all logfiles that
isoqlog uses?
I'm constantly getting the segmentation fault errors, no one else on the
list (except two other people) appear affected by it, so I want to see
if it's something about my log-files, and just toast them all and see
what happens.
Can someone at least help with some convenient and effective way to get
rid of all the log files, please?
Harry
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| information technologies
| Austria, 1080 Wien, Blindengasse 52/3
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| fax : [phone] | web : http://weberhofer.at
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[Harry Zink]

Assume I am a total blithering idiot and don't know how to do
that... :-)

What do I edit?

Post by Johannes Weberhofer, Weberhofer GmbH
Harry,
have you tried to increase the "softlimit" in the affected "/var/
qmail/supervise/*/run" file. This could prevent strange errors like
segfaults.
Johannes

Post by Harry Zink
What's the easiest way to delete, comprehensively, all logfiles
that isoqlog uses?
I'm constantly getting the segmentation fault errors, no one else
on the list (except two other people) appear affected by it, so I
want to see if it's something about my log-files, and just toast
them all and see what happens.
Can someone at least help with some convenient and effective way
to get rid of all the log files, please?
Harry
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| information technologies
| Austria, 1080 Wien, Blindengasse 52/3
|
| fax : [phone] | web : http://weberhofer.at
| mobile: [phone]
|----------------------------------------------------------->>
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True happiness comes from the joy of deeds well done, the zest of
creating things new.