sudheerv opened a new issue #6850: URL: https://github.com/apache/trafficserver/issues/6850
Noticed another assert in ats9 this time in HostDBInfo::alloc() and this assert is slightly more clear. than https://github.com/apache/trafficserver/issues/6849 which could well be due to the same issue. `proxy.config.io.max_buffer_size` is set to the default value of 32K in our prod, and the size that's being asked here is larger than that (43K). As a result, `iobuffer_size_to_index()` returns -43K (since the max_io_buf_size is set to 32K or iobuf index = 8). It's not clear yet why this assert isn't tripping in our non-ats9 prod - the code seems to be identical in our non-ats9 version as well, so, it's very surprising that this assert never once fired :-/ ``` #0 0x00002ab14f55d207 in raise () from /lib64/libc.so.6 (gdb) bt #0 0x00002ab14f55d207 in raise () from /lib64/libc.so.6 #1 0x00002ab14f55e8f8 in abort () from /lib64/libc.so.6 #2 0x00002ab14cc1d35b in ink_abort (message_format=message_format@entry=0x2ab14cc9a2a7 "%s:%d: failed assertion `%s`") at ink_error.cc:99 #3 0x00002ab14cc1a045 in _ink_assert (expression=expression@entry=0x80e86b "iobuffer_index >= 0", file=file@entry=0x80e855 "./I_HostDBProcessor.h", line=line@entry=158) at ink_assert.cc:37 #4 0x0000000000674de4 in HostDBInfo::alloc (size=43768, this=<optimized out>) at ./I_HostDBProcessor.h:158 #5 0x0000000000673037 in HostDBContinuation::dnsEvent (this=0x2ab1527a8ea0, event=<optimized out>, e=0x2ab156660000) at HostDB.cc:1302 #6 0x00000000006869a9 in handleEvent (data=0x2ab156660000, event=600, this=0x2ab1527a8ea0) at /export/content/data/multiproduct-post-commit/i001/workspace/ats-core_dda77c0caf7d2719229197d3b11eaa30288bdcd5/ats9/src/iocore/eventsystem/I_Continuation.h:190 #7 DNSEntry::postOneEvent (this=0x2ab1639f5630) at DNS.cc:1450 #8 0x00000000007bf371 in handleEvent (data=0x2ab161663c20, event=1, this=0x2ab1639f5630) at I_Continuation.h:190 #9 EThread::process_event (this=this@entry=0x2ab155806000, e=e@entry=0x2ab161663c20, calling_code=1) at UnixEThread.cc:127 #10 0x00000000007bf9ae in EThread::process_queue (this=this@entry=0x2ab155806000, NegativeQueue=NegativeQueue@entry=0x2ab163504e00, ev_count=ev_count@entry=0x2ab163504dfc, nq_count=nq_count@entry=0x2ab163504df8) at UnixEThread.cc:162 #11 0x00000000007bff3b in EThread::execute_regular (this=this@entry=0x2ab155806000) at UnixEThread.cc:222 #12 0x00000000007c0712 in EThread::execute (this=0x2ab155806000) at UnixEThread.cc:327 #13 0x00000000007beab9 in spawn_thread_internal (a=0x2ab15096b740) at Thread.cc:92 #14 0x00002ab14e873dd5 in start_thread () from /lib64/libpthread.so.0 #15 0x00002ab14f624ead in clone () from /lib64/libc.so.6 (gdb) f 4 ``` ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
