On Thu, 2009-05-21 at 22:20 +0800, CAI Qian wrote: > Please don't apply this patch, which will cause compilation failure on > IA-64. I'll re-sent it shortly. >
OK. > CAI Qian > > From: CAI Qian <[email protected]> > Subject: [LTP] [PATCH] Crash02: Deal with SIGSTOP and SIGSEGV > Date: Tue, 19 May 2009 20:14:43 +0800 (CST) > > > Hi, > > > > We have seen crash02 test can not finish due to the child process got > > SIGSTOP or SIGSEGV when calling random syscalls like this, > > > > # ps aux > > ... > > 168 20121 0.0 0.0 3956 336 ? Ds 15:10 0:00 ./crash02 > > -e -v 100 > > 168 20122 0.0 0.0 3956 336 ? T 15:10 0:00 ./crash02 > > -e -v 100 > > > > > > crash02 X ffff81007fb127a0 0 21272 21271 21273 > > (L-TLB) > > ffff81004c185d58 0000000000000046 ffff81007b494e08 0000000000000002 > > 0000000000000002 0000000000000002 ffff81007c5dc860 ffff81007fb127a0 > > 00000d8ebb800862 000000000000c315 ffff81007c5dca48 0000000300000001 > > Call Trace: > > [<ffffffff800235a7>] filp_close+0x5c/0x64 > > [<ffffffff8001595a>] do_exit+0x913/0x91f > > [<ffffffff80048c18>] cpuset_exit+0x0/0x6c > > [<ffffffff8002ad05>] get_signal_to_deliver+0x42c/0x45a > > [<ffffffff8005a837>] do_notify_resume+0x9c/0x7af > > [<ffffffff80096e2b>] specific_send_sig_info+0x44/0xac > > [<ffffffff8009710e>] force_sig_info+0xae/0xb9 > > [<ffffffff80066eed>] do_page_fault+0x81e/0x830 > > [<ffffffff8005d6dc>] retint_signal+0x3d/0x79 > > > > crash02 X ffff810002376400 0 21273 21271 21272 > > (L-TLB) > > ffff81004d201f18 0000000000000046 ffff81007b494e08 0000000000000046 > > 0000000000000046 0000000000000002 ffff810078d3a040 ffffffff802eeae0 > > 00000d8ebb803430 000000000001a60c ffff810078d3a228 0000000000000000 > > Call Trace: > > [<ffffffff8001595a>] do_exit+0x913/0x91f > > [<ffffffff80048c18>] cpuset_exit+0x0/0x6c > > [<ffffffff8005d28d>] tracesys+0xd5/0xe0 > > > > So we use WUNTRACED option. Also, we found out that it picks up vfork(), > > it will generate SIGSEGV. I am not sure what else can generate the same, > > so only blacklist vfork() at the moment. > > > > Signed-off-by: CAI Qian <[email protected]> > > > > --- testcases/misc/crash/crash02.c.orig 2009-05-19 19:47:24.000000000 > > +0800 > > +++ testcases/misc/crash/crash02.c 2009-05-19 20:03:51.000000000 +0800 > > @@ -51,6 +51,8 @@ > > */ > > > > > > +#define _GNU_SOURCE > > +#include <sys/syscall.h> > > #include <stdio.h> > > #include <stdlib.h> > > #include <string.h> > > @@ -241,7 +243,7 @@ > > my_signal (SIGALRM, monitor_fcn); > > alarm (ntries*MAX_TRY_TIME); > > > > - pid = wait (&status); > > + pid = waitpid (-1, &status, WUNTRACED); > > if (pid <= 0) > > { > > perror ("wait"); > > @@ -453,7 +455,10 @@ > > { > > long int sysno, arg1, arg2, arg3, arg4, arg5, arg6, arg7; > > > > - sysno = rand()%sysno_max; > > + do { > > + sysno = rand()%sysno_max; > > + } while (sysno == SYS_vfork); > > + > > arg1 = rand_long(); > > arg2 = rand_long(); > > arg3 = rand_long(); > > > > ------------------------------------------------------------------------------ > > Crystal Reports - New Free Runtime and 30 Day Trial > > Check out the new simplified licensing option that enables > > unlimited royalty-free distribution of the report engine > > for externally facing server and web deployment. > > http://p.sf.net/sfu/businessobjects > > _______________________________________________ > > Ltp-list mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/ltp-list > > ------------------------------------------------------------------------------ > Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT > is a gathering of tech-side developers & brand creativity professionals. Meet > the minds behind Google Creative Lab, Visual Complexity, Processing, & > iPhoneDevCamp asthey present alongside digital heavyweights like Barbarian > Group, R/GA, & Big Spaceship. http://www.creativitycat.com > _______________________________________________ > Ltp-list mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ltp-list ------------------------------------------------------------------------------ Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers & brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, & iPhoneDevCamp asthey present alongside digital heavyweights like Barbarian Group, R/GA, & Big Spaceship. http://www.creativitycat.com _______________________________________________ Ltp-list mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ltp-list
