Details
Description
Hello,
I have many issues with Dell PowerConnect monitoring :
- Temperature report is wrong
- Too many fans are detected
- Many blank states appears (and other non blank but with no values)
- No CPU monitoring
Also, I see that during the discovery of those device, the snmpbulkwalk crashs :
Sensors: FASTPATH-BOXSERVICES-PRIVATE-MIB *** buffer overflow detected ***: /usr/bin/snmpbulkwalk terminated
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======= Backtrace: =========
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/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7f7fb3b3d697]
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/lib/x86_64-linux-gnu/libc.so.6(+0xef550)[0x7f7fb3b3c550]
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/lib/x86_64-linux-gnu/libc.so.6(+0xee9a9)[0x7f7fb3b3b9a9]
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/lib/x86_64-linux-gnu/libc.so.6(_IO_default_xsputn+0x85)[0x7f7fb3ac21e5]
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/lib/x86_64-linux-gnu/libc.so.6(_IO_vfprintf+0x1d10)[0x7f7fb3a920c0]
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/lib/x86_64-linux-gnu/libc.so.6(__vsprintf_chk+0x9d)[0x7f7fb3b3ba4d]
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/lib/x86_64-linux-gnu/libc.so.6(__sprintf_chk+0x7f)[0x7f7fb3b3b98f]
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/usr/lib/libnetsnmp.so.15(sprint_realloc_integer+0x2c4)[0x7f7fb3df9f74]
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/usr/lib/libnetsnmp.so.15(sprint_realloc_variable+0x12e)[0x7f7fb3dfb74e]
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/usr/lib/libnetsnmp.so.15(fprint_variable+0x76)[0x7f7fb3dfb876]
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/usr/bin/snmpbulkwalk[0x401468]
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/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd)[0x7f7fb3a6beed]
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/usr/bin/snmpbulkwalk[0x401799]
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======= Memory map: ========
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00400000-00403000 r-xp 00000000 08:03 17816 /usr/bin/snmpbulkwalk
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00602000-00603000 r--p 00002000 08:03 17816 /usr/bin/snmpbulkwalk
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00603000-00604000 rw-p 00003000 08:03 17816 /usr/bin/snmpbulkwalk
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01c70000-01cdc000 rw-p 00000000 00:00 0 [heap]
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7f7fb3024000-7f7fb3039000 r-xp 00000000 08:01 542 /lib/x86_64-linux-gnu/libgcc_s.so.1
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7f7fb3039000-7f7fb3239000 ---p 00015000 08:01 542 /lib/x86_64-linux-gnu/libgcc_s.so.1
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7f7fb3239000-7f7fb323a000 rw-p 00015000 08:01 542 /lib/x86_64-linux-gnu/libgcc_s.so.1
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7f7fb323a000-7f7fb3250000 r-xp 00000000 08:01 442 /lib/x86_64-linux-gnu/libz.so.1.2.7
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7f7fb3250000-7f7fb344f000 ---p 00016000 08:01 442 /lib/x86_64-linux-gnu/libz.so.1.2.7
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7f7fb344f000-7f7fb3450000 r--p 00015000 08:01 442 /lib/x86_64-linux-gnu/libz.so.1.2.7
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7f7fb3450000-7f7fb3451000 rw-p 00016000 08:01 442 /lib/x86_64-linux-gnu/libz.so.1.2.7
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7f7fb3451000-7f7fb3453000 r-xp 00000000 08:01 18946 /lib/x86_64-linux-gnu/libdl-2.13.so
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7f7fb3453000-7f7fb3653000 ---p 00002000 08:01 18946 /lib/x86_64-linux-gnu/libdl-2.13.so
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7f7fb3653000-7f7fb3654000 r--p 00002000 08:01 18946 /lib/x86_64-linux-gnu/libdl-2.13.so
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7f7fb3654000-7f7fb3655000 rw-p 00003000 08:01 18946 /lib/x86_64-linux-gnu/libdl-2.13.so
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7f7fb3655000-7f7fb381f000 r-xp 00000000 08:03 62 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0
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7f7fb381f000-7f7fb3a1f000 ---p 001ca000 08:03 62 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0
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7f7fb3a1f000-7f7fb3a3a000 r--p 001ca000 08:03 62 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0
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7f7fb3a3a000-7f7fb3a49000 rw-p 001e5000 08:03 62 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0
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7f7fb3a49000-7f7fb3a4d000 rw-p 00000000 00:00 0
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7f7fb3a4d000-7f7fb3bce000 r-xp 00000000 08:01 18943 /lib/x86_64-linux-gnu/libc-2.13.so
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7f7fb3bce000-7f7fb3dce000 ---p 00181000 08:01 18943 /lib/x86_64-linux-gnu/libc-2.13.so
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7f7fb3dce000-7f7fb3dd2000 r--p 00181000 08:01 18943 /lib/x86_64-linux-gnu/libc-2.13.so
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7f7fb3dd2000-7f7fb3dd3000 rw-p 00185000 08:01 18943 /lib/x86_64-linux-gnu/libc-2.13.so
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7f7fb3dd3000-7f7fb3dd8000 rw-p 00000000 00:00 0
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7f7fb3dd8000-7f7fb3e72000 r-xp 00000000 08:03 168 /usr/lib/libnetsnmp.so.15.1.2
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7f7fb3e72000-7f7fb4072000 ---p 0009a000 08:03 168 /usr/lib/libnetsnmp.so.15.1.2
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7f7fb4072000-7f7fb4073000 r--p 0009a000 08:03 168 /usr/lib/libnetsnmp.so.15.1.2
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7f7fb4073000-7f7fb4076000 rw-p 0009b000 08:03 168 /usr/lib/libnetsnmp.so.15.1.2
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7f7fb4076000-7f7fb40ab000 rw-p 00000000 00:00 0
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7f7fb40ab000-7f7fb40cb000 r-xp 00000000 08:01 18928 /lib/x86_64-linux-gnu/ld-2.13.so
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7f7fb4287000-7f7fb42bc000 r--s 00000000 08:04 163 /var/cache/nscd/hosts
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7f7fb42bc000-7f7fb42c0000 rw-p 00000000 00:00 0
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7f7fb42c8000-7f7fb42ca000 rw-p 00000000 00:00 0
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7f7fb42ca000-7f7fb42cb000 r--p 0001f000 08:01 18928 /lib/x86_64-linux-gnu/ld-2.13.so
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7f7fb42cb000-7f7fb42cc000 rw-p 00020000 08:01 18928 /lib/x86_64-linux-gnu/ld-2.13.so
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Maybe this could be the cause ?
See screenshots for what I see from the WebUI.
Thank you.
Best regards,
Mathieu
There is no bug here unless you've already checked what the device is reporting via snmp.
Note that we also have no control over the stability of net-snmp or the quality of the MIBs.