From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12892 invoked by alias); 29 Aug 2013 19:42:13 -0000 Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org Received: (qmail 12867 invoked by uid 48); 29 Aug 2013 19:42:10 -0000 From: "wcohen at redhat dot com" To: systemtap@sourceware.org Subject: [Bug runtime/15908] On ARM fc19 hw_watch_addr.stp example causes kernel hang and "BUG: scheduling while atomic:" and lock up Date: Thu, 29 Aug 2013 19:42:00 -0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: systemtap X-Bugzilla-Component: runtime X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: wcohen at redhat dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: systemtap at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2013-q3/txt/msg00201.txt.bz2 https://sourceware.org/bugzilla/show_bug.cgi?id=15908 --- Comment #1 from William Cohen --- The testsuite/systemtap.log has the following output which seems to indicate that it should fail because "OUT WARNING" says no hardware watchpoints are available: meta taglines 'test_support: perf stat --event=mem:0xc000000 /bin/true' tag 'test_support' value 'perf stat --event=mem:0xc000000 /bin/true' TEST PWD=/mnt/badlands/home/wcohen/systemtap_write/systemtap/testsuite/systemtap.examples/memory attempting command perf stat --event=mem:0xc000000 /bin/true OUT Performance counter stats for '/bin/true': 0 mem:0xc000000 0.012679596 seconds time elapsed RC 0 PASS: ./systemtap.examples/memory/hw_watch_addr support meta taglines 'test_check: stap --all-modules -p4 hw_watch_addr.stp 0x`grep "vm_dirty_ratio" /proc/kallsyms`' tag 'test_check' value 'stap --all-modules -p4 hw_watch_addr.stp 0x`grep "vm_dirty_ratio" /proc/kallsyms`' attempting command stap --all-modules -p4 hw_watch_addr.stp 0x`grep "vm_dirty_ratio" /proc/kallsyms` OUT WARNING: Too many hardware breakpoint probes requested for arm (1 vs. 0) /mnt/badlands/home/wcohen/systemtap_write/systemtap/testsuite/.systemtap-root/cache/1e/stap_1ecd6f7036b3c87d801be07b2476bfa4_2556.ko RC 0 PASS: ./systemtap.examples/memory/hw_watch_addr build meta taglines 'test_installcheck: stap --all-modules hw_watch_addr.stp 0x`grep "vm_dirty_ratio" /proc/kallsyms` -c "sleep 5"' tag 'test_installcheck' value 'stap --all-modules hw_watch_addr.stp 0x`grep "vm_dirty_ratio" /proc/kallsyms` -c "sleep 5"' attempting command stap --all-modules hw_watch_addr.stp 0x`grep "vm_dirty_ratio" /proc/kallsyms` -c "sleep 5" -- You are receiving this mail because: You are the assignee for the bug.