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http://sourceware.org/bugzilla/show_bug.cgi?id=13641 Bug #: 13641 Summary: pfiles.stp does something nasty Product: systemtap Version: unspecified Status: NEW Severity: normal Priority: P2 Component: testsuite AssignedTo: systemtap@sourceware.org ReportedBy: mjw@redhat.com Classification: Unclassified The pfiles.stp example does something nasty from its begin probe. When run as /usr/local/install/systemtap/bin/stap -g ~/src/systemtap/testsuite/systemtap.examples/propfiles.stp -x $$ [ 2714.125183] BUG: sleeping function called from invalid context at mm/page_alloc.c:2388 [ 2714.126350] in_atomic(): 1, irqs_disabled(): 0, pid: 22863, name: stapio [ 2714.127299] 1 lock held by stapio/22863: [ 2714.127829] #0: (rcu_read_lock){.+.+.+}, at: [<ffffffffa024f9a6>] probe_1987+0x1586/0x31b0 [stap_a77c4d009ef9368aeee6479f53f05545_22863] [ 2714.129729] Pid: 22863, comm: stapio Tainted: G O 3.3.0-0.rc1.git6.1.fc17.x86_64 #1 [ 2714.130963] Call Trace: [ 2714.131336] [<ffffffff81095d1c>] __might_sleep+0x13c/0x200 [ 2714.132194] [<ffffffff8115823b>] __alloc_pages_nodemask+0x26b/0xad0 [ 2714.133045] [<ffffffff81043ba2>] ? kvm_clock_read+0x32/0x40 [ 2714.133771] [<ffffffff81020f99>] ? sched_clock+0x9/0x10 [ 2714.134480] [<ffffffff810a2485>] ? sched_clock_local+0x25/0xa0 [ 2714.135358] [<ffffffff810a2638>] ? sched_clock_cpu+0xa8/0x120 [ 2714.136250] [<ffffffff810c6c8d>] ? trace_hardirqs_off+0xd/0x10 [ 2714.137063] [<ffffffff810a271f>] ? local_clock+0x6f/0x80 [ 2714.137792] [<ffffffff81194334>] alloc_pages_current+0xa4/0x110 [ 2714.138601] [<ffffffff81153874>] __get_free_pages+0x14/0x50 [ 2714.139365] [<ffffffffa024ff44>] probe_1987+0x1b24/0x31b0 [stap_a77c4d009ef9368aeee6479f53f05545_22863] [ 2714.140736] [<ffffffffa024f9a6>] ? probe_1987+0x1586/0x31b0 [stap_a77c4d009ef9368aeee6479f53f05545_22863] [ 2714.142031] [<ffffffffa02519fc>] enter_be_probe+0x11c/0x230 [stap_a77c4d009ef9368aeee6479f53f05545_22863] [ 2714.143305] [<ffffffffa02523f7>] _stp_ctl_write_cmd+0x477/0x710 [stap_a77c4d009ef9368aeee6479f53f05545_22863] [ 2714.144765] [<ffffffff811baacf>] vfs_write+0xaf/0x190 [ 2714.145474] [<ffffffff811bae0d>] sys_write+0x4d/0x90 [ 2714.146168] [<ffffffff816aa369>] system_call_fastpath+0x16/0x1b [ 2714.146950] BUG: scheduling while atomic: stapio/22863/0x10000003 [ 2714.148457] 1 lock held by stapio/22863: [ 2714.148978] #0: (rcu_read_lock){.+.+.+}, at: [<ffffffffa024f9a6>] probe_1987+0x1586/0x31b0 [stap_a77c4d009ef9368aeee6479f53f05545_22863] [ 2714.150710] Modules linked in: stap_a77c4d009ef9368aeee6479f53f05545_22863(O) nfs lockd fscache auth_rpcgss nfs_acl sunrpc nf_conntrack_ipv4 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv4 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc 8139too i2c_piix4 microcode i2c_core 8139cp mii virtio_balloon uinput [last unloaded: stap_bb8bdd5545a4e03cd65c278e9cad1e76__22329] [ 2714.156946] Pid: 22863, comm: stapio Tainted: G O 3.3.0-0.rc1.git6.1.fc17.x86_64 #1 [ 2714.158127] Call Trace: [ 2714.158472] [<ffffffff816957f4>] __schedule_bug+0x80/0x85 [ 2714.159275] [<ffffffff8169f7eb>] __schedule+0x8db/0x9a0 [ 2714.159977] [<ffffffff8109b32a>] __cond_resched+0x2a/0x40 [ 2714.160784] [<ffffffff8169f930>] _cond_resched+0x30/0x40 [ 2714.161629] [<ffffffff81158240>] __alloc_pages_nodemask+0x270/0xad0 [ 2714.162545] [<ffffffff81043ba2>] ? kvm_clock_read+0x32/0x40 [ 2714.163360] [<ffffffff81020f99>] ? sched_clock+0x9/0x10 [ 2714.164136] [<ffffffff810a2485>] ? sched_clock_local+0x25/0xa0 [ 2714.164999] [<ffffffff810a2638>] ? sched_clock_cpu+0xa8/0x120 [ 2714.165833] [<ffffffff810c6c8d>] ? trace_hardirqs_off+0xd/0x10 [ 2714.166750] [<ffffffff810a271f>] ? local_clock+0x6f/0x80 [ 2714.167539] [<ffffffff81194334>] alloc_pages_current+0xa4/0x110 [ 2714.168412] [<ffffffff81153874>] __get_free_pages+0x14/0x50 [ 2714.169246] [<ffffffffa024ff44>] probe_1987+0x1b24/0x31b0 [stap_a77c4d009ef9368aeee6479f53f05545_22863] [ 2714.170567] [<ffffffffa024f9a6>] ? probe_1987+0x1586/0x31b0 [stap_a77c4d009ef9368aeee6479f53f05545_22863] [ 2714.171885] [<ffffffffa02519fc>] enter_be_probe+0x11c/0x230 [stap_a77c4d009ef9368aeee6479f53f05545_22863] [ 2714.173192] [<ffffffffa02523f7>] _stp_ctl_write_cmd+0x477/0x710 [stap_a77c4d009ef9368aeee6479f53f05545_22863] [ 2714.174605] [<ffffffff811baacf>] vfs_write+0xaf/0x190 [ 2714.175407] [<ffffffff811bae0d>] sys_write+0x4d/0x90 [ 2714.176112] [<ffffffff816aa369>] system_call_fastpath+0x16/0x1b -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.
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