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Try to help if you know how. I appreciate it!


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Hello everyone. I am the admin for "WHEELCHAIR MAFIA PVE" servers. It is the best known and most played server for the Czech and Slovak community, for more than a month we have been ranked first in the ranking according to Google ratings. There was a problem we couldn't solve, as did the hosting provider. The server crashes accidentally without any activity that should interfere with server stability. The error that occurs every time a server crashes is:


mmap (PROT_NONE) failed

Receiving unhandled NULL exception

# 0 0x007fa607243029 in (Unknown)

# 1 0x007fa604bbeb3a in Unknown

# 2 0x007fa604bbeba7 in Unknown

# 3 0x007fa604bc1a9d in Unknown

# 3 0x007fa604bc1d06 in (Unknown)

# 5 0x007fa604bc2dd8 in Unknown

# 6 0x007fa604bc5eac in Unknown

# 8 0x007fa604bc6086 in (Unknown)

# 8 0x007fa604b9922a in Unknown

# 9 0x007fa604b4f76d in Unknown

# 10 0x007fa604b4f7d4 in Unknown

# 11 0x00000041b4761f In (wrapper managed-to-native) object: __ icall_wrapper_ves_icall_array_new_specific

./Start7DaysToDieServer: line 3: 23509 Aborted (Core Dumped) ./7DaysToDieServer.x86_64 $ @


For me, this problem looks like a memory problem, but unfortunately, we couldn't solve it. Is there anyone who can provide better information about this error or write a solution? As I wrote above, we own a server that is "the best" for the community of our countries, so questions about whether a server runs on a device that is powerful enough are useless. well thank you


PS: If this post is in a place where it should not, I apologize and I'm not angry if the moderator moves it to the right place. Thank you again for any help! Sincerely, Denis Vavra (-fNx- WM)

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You get a nice sample of NullPointer Exception. For me it doesn't look as a memory error. It seems that there is some kind of "native" operation carried inside the 7d2d calling creation of a specific array for some specific object, but seems constructor is not there for the "wrapper object".

Sorry can't say anything more as I have no clue on the engine of this game. Think providing a log output along with the dump that was made will help devs to fix it.

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Yes, this mostly occurs on Linux servers. I have tested several workarounds, and the only real fix is to perform regular server restarts. I'm currently restarting my servers every 12 hours and only have this happen about once every 2-3 days.


If you are staying within the supported player count of 8-players, this isn't an issue.

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Restarts are set once every 8 hours. The server has 30 slots. 25 slots for players, 2 VIP slots and 3 slots for Admin + owner. In addition, there was no problem with accidental fall. So actually the solution to this problem is to switch to Windows? Because it was true that when we had a server on Windows, such a problem did not occur


BTW: We do not want to reduce the number of slots because there are 30/30 + 10 more players waiting to join every day

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