[TS-4994] PANIC: unprotected error in call to Lua API (not enough memory)

• Type: Bug
• Status: In Progress
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 6.2.0
• Fix Version/s: 7.1.0
• Component/s: Lua
• Assignee: Shu Kit Francis Chan
• Reporter: Felicity Tarnell
• Created: 21/Oct/16 12:10
• Updated: 22/Dec/16 17:31

Description

We have a working installation of TS 6.1; when upgrading to 6.2, it repeatedly crashes almost immediately after startup with:

PANIC: unprotected error in call to Lua API (not enough memory)
pure virtual method called
terminate called without an active exception
traffic_server: using root directory '/opt/tbx'
traffic_server: Aborted (Signal sent by tkill() 11964 33)
traffic_server - STACK TRACE: 
/opt/tbx/bin/traffic_server(_Z19crash_logger_invokeiP9siginfo_tPv+0x8e)[0x4ac16e]
/lib/x86_64-linux-gnu/libpthread.so.0(+0xf8d0)[0x2b2c43b828d0]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x37)[0x2b2c44b52067]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x148)[0x2b2c44b53448]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(_ZN9__gnu_cxx27__verbose_terminate_handlerEv+0x15d)[0x2b2c4435bb3d]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0x5ebb6)[0x2b2c44359bb6]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0x5ec01)[0x2b2c44359c01]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0x5f6cf)[0x2b2c4435a6cf]
/opt/tbx/bin/traffic_server(_ZN9NetAccept18do_blocking_acceptEP7EThread+0x99)[0x74dd69]
/opt/tbx/bin/traffic_server(_ZN9NetAccept15acceptLoopEventEiP5Event+0x2b)[0x74e62b]
/opt/tbx/bin/traffic_server(_ZN7EThread7executeEv+0x7f)[0x77ce1f]
/opt/tbx/bin/traffic_server[0x77c315]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x80a4)[0x2b2c43b7b0a4]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x2b2c44c0587d]

We have about 5000 lines of Lua, and one C module (lualdap), but nothing that should be approaching Lua's memory limit; it's mostly just access checks that don't allocate any memory at all.

Issue Links

• blocks: TS-5020 Move ts_lua out of experimental
• links to: GitHub Pull Request #1201