Urbackup server 2.4.10 crash on linux

Server
1

Hello, I’m setting up a new server running Slackware Linux 14.2 x64 with urbackup 2.4.10.
I’ve installed cryptopp 7.0.0 from the slackbuilds repository and then installed urbackup 2.4.10 using the usual

./configure --with-mountvhd
make -j3
make install

When i try to run the server, it just crashes after a few seconds:

root@srv01:~# /usr/local/bin/urbackupsrv run
2019-10-30 15:41:07: Starting HTTP-Server on port 55414
2019-10-30 15:41:07: HTTP: Server started up successfully!
2019-10-30 15:41:07: Generating Server private/public ECDSA key…
Segmentation fault

When running it under gdb, it looks like there something’s wrong with cryptopp: Thread 1 "urbackupsrv" received signal SIGSEGV, Segmentation fault.0x00007ffff - Pastebin.com

I’ll now try to upgrade/downgrade cryptopp to see if it works with a different version.
Thank you

2

Similar crash using cryptopp 5.6.5: https://pastebin.com/RGemT1Jx

I’ll now try to downgrade urbackup

3

Urbackup server 2.3.8 works fine with both cryptopp 5.6.5 and cryptopp 7.0.0.
Do you want to me to make other tests?

4

Could you check wether or not it compiles with -DCRYPTOPP_DISABLE_ASM and wether your distribution crypto++ was compiled with -DCRYPTOPP_DISABLE_ASM ?

If this doesn’t match the detection in configure does not work. Could you upload config.log in this case? (Also it should start working if you edit configure and delete/edit -DCRYPTOPP_DISABLE_ASM )

5

I can confirm that urbackup is compiled with -DCRYPTOPP_DISABLE_ASM.
The script used to build cryptopp is here: http://slackbuilds.org/slackbuilds/14.2/libraries/cryptopp/cryptopp.SlackBuild, and i see no mention of DCRYPTOPP_DISABLE_ASM.

The config log is here: https:// pastebin . com/eiBkFp45

Looks like the CryptoPP::AlignedAllocate test program fails because of missing -lpthread

6

I see my post are being hidden as spam, i guess that’s because of the pastebin links… if you prefer me to post these on another place, just tell me

7

Ok, thanks. So adding $PTHREAD_LIBS to LDFLAGS for that test should fix it.

8

Adding -lpthread to the line https://github.com/uroni/urbackup_backend/blob/dev/configure.ac_server#L165 (and running autoconf) did the trick.
I’ve tried adding $PTHREAD_LIBS instead, but that variable seems to be empty at that point of the script: it didn’t show up in the commandline of the gcc call

9

Thanks. Seems $PTHREAD_CFLAGS needs to be added to CPPFLAGS…

10

Would there be a similar issue with the ubuntu package? After an update to 2.4.10 the server refuses to connect to clients.