Hi, patch applied and pushed, just forgot the mail, best regards Waldemar > Am 18.12.2017 um 20:18 schrieb Vineet Gupta <Vineet.Gupta1 at synopsys.com>: > >> On 12/08/2017 10:07 AM, Vineet Gupta wrote: >> When ran on ARC, these tests would ocassionally fail >> | [ARCLinux]# for i in 1 2 3 4 5 ; do ./tst-cancel2; echo $?; done >> | write succeeded >> | result is wrong: expected 0xffffffff, got 0x1 >> | 1 <-- fail >> | 0 <-- pass >> | 0 <--- pass >> | 0 <-- pass >> | write succeeded >> | result is wrong: expected 0xffffffff, got 0x1 >> | 1 <-- fail >> Same test (which originated form glibc) doesn't fail in glibc builds. >> Turns out there's a subtle race in uclibc version >> The test creates a new thread, makes it do a looong write call, and >> parent then cancels the thread, expecting it to unwind out of write >> call cleanly. However the write (even for 10k bytes) could finish >> before parent gets a chance to resume and/or cancel it, causing the >> occasional failure. >> Fix this subtelty by making it write not just once but forever. >> Cc: Cupertino Miranda <cmiranda at synopsys.com> >> Signed-off-by: Vineet Gupta <vgupta at synopsys.com> >> --- >> Change since v1: fix typos in changelogs >> --- > > Ping ? > > >> test/nptl/tst-cancel2.c | 6 +----- >> 1 file changed, 1 insertion(+), 5 deletions(-) >> diff --git a/test/nptl/tst-cancel2.c b/test/nptl/tst-cancel2.c >> index 45c9e8ea957a..08dd13b10f37 100644 >> --- a/test/nptl/tst-cancel2.c >> +++ b/test/nptl/tst-cancel2.c >> @@ -32,11 +32,7 @@ tf (void *arg) >> write blocks. */ >> char buf[100000]; >> - if (write (fd[1], buf, sizeof (buf)) == sizeof (buf)) >> - { >> - puts ("write succeeded"); >> - return (void *) 1l; >> - } >> + while (write (fd[1], buf, sizeof (buf)) > 0); >> return (void *) 42l; >> } >