From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: 2.6.17-mm3: swsusp fails when process is debugged by ptrace Date: Wed, 28 Jun 2006 10:17:35 -0700 Message-ID: <44A2B9AF.50803@goop.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from gw.goop.org ([64.81.55.164]:63468 "EHLO mail.goop.org") by vger.kernel.org with ESMTP id S1751478AbWF1RRf (ORCPT ); Wed, 28 Jun 2006 13:17:35 -0400 Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Linux Kernel Mailing List , linux-acpi@vger.kernel.org, Andrew Morton If I try to suspend the machine while a process debug-stopped by ptrace, suspend fails: PM: Preparing system for mem sleep Freezing cpus ... Breaking affinity for irq 0 Breaking affinity for irq 1 Breaking affinity for irq 12 Breaking affinity for irq 23 CPU 1 is now offline SMP alternatives: switching to UP code CPU1 is down Stopping tasks: ========================================================================================================================================================== stopping tasks timed out after 20 seconds (13 tasks remaining): khubd kseriod pdflush pdflush kswapd0 kprefetchd pccardd kirqd kjournald kauditd knodemgrd_0 kjournald test-vsnprintf Restarting tasks...<6> Strange, khubd not stopped Strange, kseriod not stopped Strange, pdflush not stopped Strange, pdflush not stopped Strange, kswapd0 not stopped Strange, kprefetchd not stopped Strange, pccardd not stopped Strange, kirqd not stopped Strange, kjournald not stopped Strange, kauditd not stopped Strange, knodemgrd_0 not stopped Strange, kjournald not stopped Strange, test-vsnprintf not stopped done Thawing cpus ... In this case, test-vsnprintf is stopped in a breakpoint in gdb. If I quit it, then suspend works as expected. J