reassign 322500 libsnmp5,ifstat
retitle 322500 libsnmp5: ABI change without SONAME change
severity 322500 serious
thanks
Hi Craig,
downgrading the libsnmp5 seems to be the best fix for now. But if you
need/want the new libsnmp5 then recompiling the pckage will also fix
the problem. Details below if you are intrested.
Hi Jochen,
I'm reassigning this bug to libsnmp5 as I suspect you broke the ABI
without increasing the soname of the library. Read on.
Craig Small <[EMAIL PROTECTED]> writes:
> Package: ifstat
> Version: 1.1-3
> Severity: grave
> Justification: renders package unusable
>
> ifstat doesnt work if you have libsnmp5 5.2.1.2-1 installed.
> It does work if you have 5.1.2-6.1 installed.
>
> $ ifstat -i FastEthernet3/1 -s [EMAIL PROTECTED]
> ifstat: snmpgetnext(interfaces.ifTable.ifEntry.ifIndex...): Timeout
On amd64 I get the following:
sarge:~% ifstat -s 192.168.1.1
K32_MAC SAR_ADSL WLAN
KB/s in KB/s out KB/s in KB/s out KB/s in KB/s out
11.14 0.66 64.69 0.00 0.00 0.00
9.37 0.28 50.97 0.00 0.00 0.00
sid:~% ifstat -s [EMAIL PROTECTED]
Segmentation fault
The gdb backtrace is completly useless and looking like stack
corruption.
> Nothing seems to make it want to work any way with that library.
> Downgrading to libsnmp5_5.1.2-6.1_i386.deb made it work properly
> as before.
Downgrading to libsnmp5 5.1.99+5.2.pre1-1 still segfaults while
5.1.2-6.1 makes it work again.
The next thing I tried is recompiling ifstat against the new library:
[EMAIL PROTECTED]:~/ifstat/ifstat-1.1$ ./ifstat -s 192.168.1.1
K32_MAC SAR_ADSL WLAN
KB/s in KB/s out KB/s in KB/s out KB/s in KB/s out
10.41 0.27 68.65 0.00 0.00 0.00
9.71 0.28 46.43 0.00 0.00 0.00
Voila it works again. I also get a timeout with gkrellm-snmp with the
new libsnmp5 but not with the stable one. This makes me believe the
libsnmp5 upgrade breaks binary compatibility and is to blame.
Unless you find a flaw in my findings please upload a libsnmp6 asap
and notify all rdepends of libsnmp5 of the change.
MfG
Goswin
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