Hi,
im try to test pdns to replace bind on our three nameservers. The main
job of these servers is to answer reverse lookups.
They handle a lot of zones. Bind takes 4.7 gb of memory. I use the bind
backend for pdns.
When i start pdns in the monitor mode i can see it start to parse the
zone files succesfully. The memory usage of pdns grows and when
the system memory reach more than 4.5 gb the pdns process get killed
with the following message:
Mar 6 15:43:21 dns04 pdns[3046]: Got a signal 11, attempting to print
trace:
Mar 6 15:43:21 dns04 pdns[3046]: pdns_server [0x80b2de7]
Mar 6 15:43:21 dns04 pdns[3046]: [0xffffe420]
Mar 6 15:43:21 dns04 pdns[3046]: /lib/libz.so.1(inflateEnd+0x1c)
[0xb7fc238c]
Mar 6 15:43:21 dns04 pdns[3046]: /lib/libz.so.1 [0xb7fb985f]
Mar 6 15:43:21 dns04 pdns[3046]: /lib/libz.so.1 [0xb7fb9c1f]
Mar 6 15:43:21 dns04 pdns[3046]:
pdns_server(_ZN10ZoneParser5parseERKSsS1_j+0x10a4) [0x8115ac4]
Mar 6 15:43:21 dns04 pdns[3046]:
pdns_server(_ZN12Bind2Backend10loadConfigEPSs+0xbab) [0x81042db]
Mar 6 15:43:21 dns04 pdns[3046]:
pdns_server(_ZN12Bind2BackendC1ERKSs+0x167) [0x8106497]
Mar 6 15:43:21 dns04 pdns[3046]:
pdns_server(_ZN12Bind2Factory4makeERKSs+0x29) [0x810ec39]
Mar 6 15:43:21 dns04 pdns[3046]:
pdns_server(_ZN17BackendMakerClass3allEv+0x19e) [0x80a46be]
Mar 6 15:43:21 dns04 pdns[3046]:
pdns_server(_ZN12UeberBackendC1ERKSs+0x121) [0x80c1671]
Mar 6 15:43:21 dns04 pdns[3046]:
pdns_server(_ZN13PacketHandlerC1Ev+0x2f) [0x807e7af]
Mar 6 15:43:21 dns04 pdns[3046]:
pdns_server(_ZN13TCPNameserver2goEv+0xcb) [0x808aedb]
Mar 6 15:43:21 dns04 pdns[3046]: pdns_server(_Z10mainthreadv+0x3fd)
[0x80f12fd]
Mar 6 15:43:21 dns04 pdns[3046]: pdns_server(main+0x3ed7) [0x80bc047]
Mar 6 15:43:21 dns04 pdns[3046]: /lib/libc.so.6(__libc_start_main+0xcd)
[0xb7da1e0d]
Mar 6 15:43:21 dns04 pdns[3046]: pdns_server(__gxx_personality_v0+0xe5)
[0x805fa41]
Has pdns a memory limit in the bind backend? Or is it maybe a limit from
the os?
The signal 11 seems to be a failure of an invalid memory reference.
Output of man 7 signal:
SIGSEGV 11 Core Invalid memory reference
Any ideas?
Thanks in advance,
Thomas
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