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[Bug kprobes/13819] A Call Trace is generated when stap is run if the kernel option "Debug access to per_cpu maps" is enabled


http://sourceware.org/bugzilla/show_bug.cgi?id=13819

--- Comment #2 from Kevin Colbert <kevincolbert33 at gmail dot com> 2012-03-08 00:35:15 UTC ---
Mar  7 18:28:00 localhost kernel: [ 5089.611692] _stp_transport_init:310
transport_init
Mar  7 18:28:00 localhost kernel: [ 5089.611702] _stp_transport_fs_init:545
entry
Mar  7 18:28:00 localhost kernel: [ 5089.613174]
_stp_transport_data_fs_init:357 returning 0...
Mar  7 18:28:00 localhost kernel: [ 5089.613195] _stp_transport_fs_init:592
returning 0
Mar  7 18:28:00 localhost kernel: [ 5089.613674] _stp_ctl_send_notify:468
_stp_ctl_send_notify: type=4 len=0
Mar  7 18:28:00 localhost kernel: [ 5089.613679] _stp_ctl_write_dbug:170
sending STP_TRANSPORT
Mar  7 18:28:00 localhost kernel: [ 5089.613776] _stp_transport_init:387
returning 0...
Mar  7 18:28:00 localhost kernel: [ 5089.614430] _stp_attach:245 attach
Mar  7 18:28:00 localhost kernel: [ 5089.719808] _stp_detach:227 detach
Mar  7 18:28:00 localhost kernel: [ 5089.722608] _stp_attach:245 attach
Mar  7 18:28:00 localhost kernel: [ 5089.723362] _stp_handle_start:107
stp_handle_start
Mar  7 18:28:00 localhost kernel: [ 5089.724317] _stp_ctl_send_notify:468
_stp_ctl_send_notify: type=0 len=8
Mar  7 18:28:00 localhost kernel: [ 5089.724325] _stp_ctl_write_dbug:155
sending STP_START
Mar  7 18:28:00 localhost kernel: [ 5089.724349] stp_print_flush:27 len = 79
Mar  7 18:28:00 localhost kernel: [ 5089.724356] stp_print_flush:112 calling
_stp_data_write...
Mar  7 18:28:00 localhost kernel: [ 5089.742299] _stp_request_exit:214 ctl_send
STP_REQUEST_EXIT
Mar  7 18:28:00 localhost kernel: [ 5089.742305] _stp_ctl_send_notify:468
_stp_ctl_send_notify: type=13 len=0
Mar  7 18:28:00 localhost kernel: [ 5089.742309] _stp_ctl_write_dbug:191
sending STP_REQUEST_EXIT
Mar  7 18:28:00 localhost kernel: [ 5089.742375] _stp_request_exit:218 done
with ctl_send STP_REQUEST_EXIT
Mar  7 18:28:00 localhost kernel: [ 5089.742408] _stp_cleanup_and_exit:179
cleanup_and_exit (1)
Mar  7 18:28:00 localhost kernel: [ 5089.742412] _stp_cleanup_and_exit:183
calling systemtap_module_exit
Mar  7 18:28:00 localhost kernel: [ 5089.759333] ------------[ cut here
]------------
Mar  7 18:28:00 localhost kernel: [ 5089.759344] WARNING: at
include/linux/cpumask.h:107 _stp_cleanup_and_exit+0x72f/0x7b0
[stap_a97c8ec2c8cf617f051c014435d8912a_4811]() (Tainted: G        W 
----------------  )
Mar  7 18:28:00 localhost kernel: [ 5089.759349] Hardware name: ProLiant DL380
G7
Mar  7 18:28:00 localhost kernel: [ 5089.759352] Modules linked in:
stap_a97c8ec2c8cf617f051c014435d8912a_4811(U) ip6table_filter ip6_tables
ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4
nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle
iptable_filter ip_tables bridge autofs4 sunrpc bnx2fc cnic uio fcoe libfcoe
8021q garp libfc stp scsi_transport_fc llc scsi_tgt pcc_cpufreq ipv6 dm_mirror
dm_region_hash dm_log dm_mod vhost_net macvtap macvlan tun kvm_intel kvm uinput
sg power_meter microcode iTCO_wdt iTCO_vendor_support hpilo hpwdt bnx2
i7core_edac edac_core shpchp ext4 mbcache jbd2 cciss hpsa radeon ttm
drm_kms_helper drm i2c_algo_bit i2c_core [last unloaded:
stap_a97c8ec2c8cf617f051c014435d8912a_4586]
Mar  7 18:28:00 localhost kernel: [ 5089.759430] Pid: 4811, comm: stapio
Tainted: G        W  ----------------   2.6.32 #1
Mar  7 18:28:00 localhost kernel: [ 5089.759434] Call Trace:
Mar  7 18:28:00 localhost kernel: [ 5089.759442]  [<ffffffff810a1027>] ?
warn_slowpath_common+0xc7/0x130
Mar  7 18:28:00 localhost kernel: [ 5089.759447]  [<ffffffff810a10ba>] ?
warn_slowpath_null+0x2a/0x40
Mar  7 18:28:00 localhost kernel: [ 5089.759455]  [<ffffffffa0791e0f>] ?
_stp_cleanup_and_exit+0x72f/0x7b0 [stap_a97c8ec2c8cf617f051c014435d8912a_4811]
Mar  7 18:28:00 localhost kernel: [ 5089.759463]  [<ffffffffa0792e62>] ?
_stp_ctl_write_cmd+0x2b2/0xef0 [stap_a97c8ec2c8cf617f051c014435d8912a_4811]
Mar  7 18:28:00 localhost kernel: [ 5089.759470]  [<ffffffff81259716>] ?
fget_light+0x76/0x150
Mar  7 18:28:00 localhost kernel: [ 5089.759476]  [<ffffffff81273a65>] ?
sys_fcntl+0x745/0x8a0
Mar  7 18:28:00 localhost kernel: [ 5089.759483]  [<ffffffff8133bdde>] ?
security_file_permission+0x1e/0x30
Mar  7 18:28:00 localhost kernel: [ 5089.759488]  [<ffffffff81257a89>] ?
vfs_write+0xb9/0x250
Mar  7 18:28:00 localhost kernel: [ 5089.759493]  [<ffffffff81259716>] ?
fget_light+0x76/0x150
Mar  7 18:28:00 localhost kernel: [ 5089.759499]  [<ffffffff811551b3>] ?
audit_syscall_entry+0x363/0x3a0
Mar  7 18:28:00 localhost kernel: [ 5089.759505]  [<ffffffff81258639>] ?
sys_write+0x69/0xd0
Mar  7 18:28:00 localhost kernel: [ 5089.759510]  [<ffffffff8100ff72>] ?
system_call_fastpath+0x16/0x1b
Mar  7 18:28:00 localhost kernel: [ 5089.759514] ---[ end trace
f8dbfc3753fd3ed3 ]---
Mar  7 18:28:00 localhost kernel: [ 5090.014282] _stp_cleanup_and_exit:186 done
with systemtap_module_exit
Mar  7 18:28:00 localhost kernel: [ 5090.014287] _stp_cleanup_and_exit:193 ***
calling _stp_transport_data_fs_stop ***
Mar  7 18:28:00 localhost kernel: [ 5090.014293]
_stp_transport_data_fs_stop:263 flushing...
Mar  7 18:28:00 localhost kernel: [ 5090.014298] _stp_cleanup_and_exit:196
ctl_send STP_EXIT
Mar  7 18:28:00 localhost kernel: [ 5090.014302] _stp_ctl_send_notify:468
_stp_ctl_send_notify: type=1 len=0
Mar  7 18:28:00 localhost kernel: [ 5090.014306] _stp_ctl_write_dbug:158
sending STP_EXIT
Mar  7 18:28:00 localhost kernel: [ 5090.014311] _stp_cleanup_and_exit:204 done
with ctl_send STP_EXIT
Mar  7 18:28:00 localhost kernel: [ 5090.014624] _stp_detach:227 detach
Mar  7 18:28:00 localhost kernel: [ 5090.023361] _stp_attach:245 attach
Mar  7 18:28:00 localhost kernel: [ 5090.023401] _stp_detach:227 detach
Mar  7 18:28:00 localhost kernel: [ 5090.023564] _stp_transport_close:294 4816:
************** transport_close *************
Mar  7 18:28:00 localhost kernel: [ 5090.023711] _stp_transport_fs_close:598
stp_transport_fs_close
Mar  7 18:28:00 localhost kernel: [ 5090.025134] _stp_transport_close:301 ----
CLOSED ----
Mar  7 18:28:01 localhost abrtd: Directory 'oops-2012-03-07-18:28:01-2159-0'
creation detected
Mar  7 18:28:01 localhost abrt-dump-oops: Reported 1 kernel oopses to Abrt
Mar  7 18:28:01 localhost abrtd: Can't open file
'/var/spool/abrt/oops-2012-03-07-18:28:01-2159-0/uid': No such file or
directory
Mar  7 18:28:15 localhost abrtd: Sending an email...
Mar  7 18:28:15 localhost abrtd: Email was sent to: root@localhost
Mar  7 18:28:15 localhost abrtd: Can't open file
'/var/spool/abrt/oops-2012-03-07-15:21:27-5527-0/uid': No such file or
directory
Mar  7 18:28:15 localhost abrtd: DUP_OF_DIR:
/var/spool/abrt/oops-2012-03-07-15:21:27-5527-0
Mar  7 18:28:15 localhost abrtd: Dump directory is a duplicate of
/var/spool/abrt/oops-2012-03-07-15:21:27-5527-0
Mar  7 18:28:15 localhost abrtd: Deleting dump directory
oops-2012-03-07-18:28:01-2159-0 (dup of oops-2012-03-07-15:21:27-5527-0),
sending dbus signal

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