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Date: Tue, 3 May 2016 09:43:43 -0700 From: Andy Lutomirski <luto@...capital.net> To: Denys Vlasenko <dvlasenk@...hat.com>, Stas Sergeev <stsp@...t.ru>, Peter Zijlstra <peterz@...radead.org>, Shuah Khan <shuahkh@....samsung.com>, Borislav Petkov <bp@...en8.de>, Linus Torvalds <torvalds@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, Brian Gerst <brgerst@...il.com>, "H. Peter Anvin" <hpa@...or.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Andy Lutomirski <luto@...capital.net>, Ingo Molnar <mingo@...nel.org>, Al Viro <viro@...iv.linux.org.uk>, Pavel Emelyanov <xemul@...allels.com>, Oleg Nesterov <oleg@...hat.com>, Andrew Morton <akpm@...ux-foundation.org> Cc: "linux-tip-commits@...r.kernel.org" <linux-tip-commits@...r.kernel.org> Subject: Re: [tip:core/signals] selftests/sigaltstack: Add new testcase for sigaltstack(SS_ONSTACK|SS_AUTODISARM) On Tue, May 3, 2016 at 12:50 AM, tip-bot for Stas Sergeev <tipbot@...or.com> wrote: > Commit-ID: 19fd2868e3671b446b13d135a44363182bbd319a > Gitweb: http://git.kernel.org/tip/19fd2868e3671b446b13d135a44363182bbd319a > Author: Stas Sergeev <stsp@...t.ru> > AuthorDate: Thu, 14 Apr 2016 23:20:05 +0300 > Committer: Ingo Molnar <mingo@...nel.org> > CommitDate: Tue, 3 May 2016 08:37:59 +0200 > > selftests/sigaltstack: Add new testcase for sigaltstack(SS_ONSTACK|SS_AUTODISARM) > > This patch adds the test case for SS_AUTODISARM flag. > The test-case tries to set SS_AUTODISARM flag and checks if > the nested signal corrupts the stack after swapcontext(). > + stk.ss_sp = sstack; > + stk.ss_size = SIGSTKSZ; > + stk.ss_flags = SS_ONSTACK | SS_AUTODISARM; > + err = sigaltstack(&stk, NULL); > + if (err) { > + perror("[FAIL]\tsigaltstack(SS_ONSTACK | SS_AUTODISARM)"); > + stk.ss_flags = SS_ONSTACK; This code path here is wrong. I'll send a fix. --Andy
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