From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: Rashmica Gupta <rashmicy@gmail.com>, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 2/3] selftests/powerpc: Add test for forking inside transaction
Date: Tue, 01 Dec 2015 13:41:43 +0530 [thread overview]
Message-ID: <565D563F.3010709@linux.vnet.ibm.com> (raw)
In-Reply-To: <1448946504-11653-3-git-send-email-rashmicy@gmail.com>
On 12/01/2015 10:38 AM, Rashmica Gupta wrote:
> +int test_fork(void)
> +{
> + SKIP_IF(!have_htm());
> +
> + asm __volatile__(
> + "tbegin.;"
> + "blt 1f; "
> + "li 0, 2;" /* fork syscall */
> + "sc ;"
> + "tend.;"
> + "1: ;"
> + : : : "memory", "r0");
> + /* If we reach here, we've passed. Otherwise we've probably crashed
> + * the kernel */
The transaction inside the parent process will abort. What
is expected inside the child process ? Why should the kernel
crash ?
next prev parent reply other threads:[~2015-12-01 8:12 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-01 5:08 [PATCH 0/3] selftests/powerpc: Transactional Memory Rashmica Gupta
2015-12-01 5:08 ` [PATCH 1/3] selftests/powerpc: Standardise TM calls Rashmica Gupta
2015-12-01 8:08 ` Anshuman Khandual
2015-12-02 3:40 ` Michael Ellerman
2015-12-02 4:41 ` Anshuman Khandual
2015-12-01 5:08 ` [PATCH 2/3] selftests/powerpc: Add test for forking inside transaction Rashmica Gupta
2015-12-01 8:11 ` Anshuman Khandual [this message]
2015-12-01 23:31 ` Rashmica
2015-12-02 5:27 ` Michael Neuling
2015-12-01 5:08 ` [PATCH 3/3] selftests/powerpc: Add in check for TM Rashmica Gupta
2015-12-01 5:18 ` [PATCH 0/3] selftests/powerpc: Transactional Memory Andrew Donnellan
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