From: "dsmith at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug runtime/14221] New: timer.profile probes cause kernel warning
Date: Mon, 11 Jun 2012 16:07:00 -0000 [thread overview]
Message-ID: <bug-14221-6586@http.sourceware.org/bugzilla/> (raw)
http://sourceware.org/bugzilla/show_bug.cgi?id=14221
Bug #: 14221
Summary: timer.profile probes cause kernel warning
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
AssignedTo: systemtap@sourceware.org
ReportedBy: dsmith@redhat.com
Classification: Unclassified
Created attachment 6445
--> http://sourceware.org/bugzilla/attachment.cgi?id=6445
test script
On rawhide (3.5.0-0.rc1.git0.1.fc18.x86_64), Having more than 1 timer.profile
probe in a script causes the following kernel warning:
====
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484074] ------------[ cut here
]------------
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484095] WARNING: at
kernel/profile.c:221 unregister_timer_hook+0x35/0x40()
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484099] Hardware name: Bochs
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484216] Modules linked in:
stap_f48cdaa4743be429f3c1898705b9bcb7_4500(O)(U) nfs nfs_acl auth_rpcgss
fscache lockd sunrpc ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6
nf_conntrack_ipv4 ip6table_filter nf_defrag_ipv4 xt_state nf_conntrack
ip6_tables snd_hda_intel kvm_amd kvm snd_hda_codec snd_hwdep snd_pcm
snd_page_alloc snd_timer snd hid_generic virtio_net i2c_piix4 soundcore
virtio_balloon uinput virtio_blk cirrus drm_kms_helper ttm drm i2c_core [last
unloaded: stap_de7534c3751ff1e20989bf2269657d17_4322]
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484225] Pid: 4500, comm:
stapio Tainted: G W O 3.5.0-0.rc1.git0.1.fc18.x86_64 #1
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484229] Call Trace:
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484241] [<ffffffff8105817f>]
warn_slowpath_common+0x7f/0xc0
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484248] [<ffffffff810581da>]
warn_slowpath_null+0x1a/0x20
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484254] [<ffffffff810a4d75>]
unregister_timer_hook+0x35/0x40
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484267] [<ffffffffa02cee11>]
_stp_cleanup_and_exit+0x151/0x360 [stap_f48cdaa4743be429f3c1898705b9bcb7_4500]
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484278] [<ffffffffa02cfa4a>]
_stp_ctl_write_cmd+0x25a/0xab0 [stap_f48cdaa4743be429f3c1898705b9bcb7_4500]
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484287] [<ffffffff8127506c>]
? security_file_permission+0x2c/0xb0
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484295] [<ffffffff81184dac>]
vfs_write+0xac/0x180
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484300] [<ffffffff811850da>]
sys_write+0x4a/0x90
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484308] [<ffffffff816170a9>]
system_call_fastpath+0x16/0x1b
Jun 11 11:03:43 kvm-rawhide-64-2 kernel: [321766.484312] ---[ end trace
ed21c0994b53b38d ]---
====
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next reply other threads:[~2012-06-11 16:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-11 16:07 dsmith at redhat dot com [this message]
2012-06-11 16:40 ` [Bug runtime/14221] " dsmith at redhat dot com
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