MySQL Bugs: #29304: mysql command line client still crash when ctrl-c is pressed

Bug #29304	mysql command line client still crash when ctrl-c is pressed
Submitted:	22 Jun 2007 15:39	Modified:	1 Feb 2008 20:49
Reporter:	Shane Bester (Platinum Quality Contributor)	Email Updates:
Status:	Duplicate	Impact on me:	None
Category:	MySQL Server: Command-line Clients	Severity:	S3 (Non-critical)
Version:	5.0.44	OS:	Microsoft Windows
Assigned to:	Assigned Account	CPU Architecture:	Any

Description:
interrupting the debug build of mysql command line client with ctrl-c still causes a few crashes. first one was fixed in bug #17926

here are two others:

crash1
----------
mysql.exe!tee_print_sized_data  Line 2486 + 0x3 bytes
mysql.exe!print_table_data  Line 2456 + 0x16 bytes
mysql.exe!com_go  Line 2144 + 0xc bytes
mysql.exe!add_line  Line 1344 + 0xb bytes
mysql.exe!read_and_execute  Line 1151 + 0x16 bytes
mysql.exe!main  Line 498 + 0x12 bytes
mysql.exe!__tmainCRTStartup()  Line 318 + 0x19 bytes
mysql.exe!mainCRTStartup()  Line 187

crash2
---------
mysql.exe!DoTrace  Line 1242 + 0x5 bytes
mysql.exe!_db_enter_  Line 739 + 0x9 bytes
mysql.exe!mysql_fetch_row  Line 2883 + 0x24 bytes
mysql.exe!print_table_data  Line 2412 + 0x9 bytes
mysql.exe!com_go  Line 2144 + 0xc bytes
mysql.exe!add_line  Line 1344 + 0xb bytes
mysql.exe!read_and_execute  Line 1151 + 0x16 bytes
mysql.exe!main  Line 498 + 0x12 bytes
mysql.exe!__tmainCRTStartup()  Line 318 + 0x19 bytes
mysql.exe!mainCRTStartup()  Line 187

How to repeat:
mysql -uroot -p test --quick
drop table if exists t1;
create table t1(id int);
insert into t1 values (1),(2),(3),(4),(5);
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
<repeat until over a million records>

select * from t1;
<after a few seconds, hit ctrl-c a few times>

Suggested fix:
somebody should review the code and signal handler that triggers mysql to begin an exit.

full stack traces

Attachment: bug29304_windows_stacks.txt (text/plain), 1.95 KiB.

See also: Bug #26243, Bug #26892

Duplicate of bug#26243

Note - Both crashes happen in the same signal handler.  Crash 1 happens when a long running query is running.  Crash 2 happens when the client is idle.  The fix for 26243 should address both.