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From: | Angelo Graziosi |
Subject: | bug#14569: 24.3.50; bootstrap fails on Cygwin |
Date: | Sat, 15 Jun 2013 15:54:21 +0200 |
User-agent: | Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 |
Christopher Faylor wrote
On 06/14/2013 11:03 AM, Christopher Faylor wrote:You pointed to an archived mail messages which implies that was fixed more than a year ago. What makes you think it is still a problem?The message I pointed to <http://cygwin.com/ml/cygwin/2012-05/msg00472.html> says this:Testcase signal/kill: Signals may or may not reach the correct thread with 1.7.12-1 and newer.Confirmed. I think the reason is that we only have a single event to signal that a POSIX signal arrived instead of a per-thread event, but I'm not sure. This is cgf's domain so I leave it at that for now. I interpreted this to mean "the existence of the bug is confirmed, here's why the bug occurs, and I'll let cgf deal with it". I didn't see any followup message where cgf (is that you?) dealt with it. My apologies if I misinterpreted the email.Oops. I didn't read Corinna's message as thoroughly as I should have. Sorry. That particular issue was supposed to have been fixed in Cygwin 1.7.17, released in October 2012.
Out of curiosity, I tried the test cases I found in that thread, more precisely here:
http://cygwin.com/ml/cygwin/2012-05/msg00434.html and the results are: $ gcc otto_test1.c -o otto_test1 $ ./otto_test1 Testing deferred pthread_cancel() Thread 0 starting (0x200102c0) Thread 1 starting (0x20010360) Thread 2 starting (0x20010400) Cancelling thread 2 (0x20010400) Thread 2 exiting (0x20010400) Cancelling thread 1 (0x20010360) Thread 1 exiting (0x20010360) Cancelling thread 0 (0x200102c0) Thread 0 exiting (0x200102c0) Thread 0 is gone (0x200102c0) Thread 1 is gone (0x20010360) Thread 2 is gone (0x20010400) $ gcc otto_test2.c -o otto_test2 $ ./otto_test2 Testing asynchronous pthread_cancel() Thread 0 starting (0x200102c0) Changing canceltype from 0 to 1 Thread 1 starting (0x20010360) Changing canceltype from 0 to 1 Thread 2 starting (0x20010400) Changing canceltype from 0 to 1 Cancelling thread 2 (0x20010400) Thread 2 exiting (0x20010400) Cancelling thread 1 (0x20010360) Thread 1 exiting (0x20010360) Cancelling thread 0 (0x200102c0) Thread 0 exiting (0x200102c0) Thread 0 is gone (0x200102c0) Thread 1 is gone (0x20010360) Thread 2 is gone (0x20010400) $ gcc otto_test3.c -o otto_test3 $ ./otto_test3 Testing pthread_kill() Thread 0 starting (0x200102c0) Thread 1 starting (0x20010360) Thread 2 starting (0x20010400) Sending SIGUSR1 to thread 2 (0x20010400) Thread 2 executes signal handler (0x20010400) Thread 2 encountered an error: Interrupted system call (0x20010400) Sending SIGUSR1 to thread 1 (0x20010360) Thread 1 executes signal handler (0x20010360) Thread 1 encountered an error: Interrupted system call (0x20010360) Sending SIGUSR1 to thread 0 (0x200102c0) Thread 0 executes signal handler (0x200102c0) Thread 0 encountered an error: Interrupted system call (0x200102c0)Are the errors in the last test case to be expected under the 20130612 snapshot (CYGWIN_NT-5.1, 1.7.21s 20130612 21:06:59, i686 Cygwin)?
Ciao, Angelo.
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