[Bug runtime/17270] uprobes_onthefly.exp causing hang on ppc64

["mcermak at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=17270

--- Comment #6 from Martin Cermak <mcermak at redhat dot com> ---
Created attachment 7826
  --> https://sourceware.org/bugzilla/attachment.cgi?id=7826&action=edit
stap-report output

hrtimer_onthefly.exp causes kernel crash on s390x too:

[ 2362.636690] stap module notifier triggered in unexpected state 3 
[ 2365.185234] stap module notifier triggered in unexpected state 3 
[ 2365.185331] stap module notifier triggered in unexpected state 3 
[ 2365.195695] Unable to handle kernel pointer dereference at virtual kernel
add 
ress           (null) 
[ 2365.195737] Oops: 0004 [#1] SMP 
[ 2365.195740] Modules linked in:
stap_67b0151b97c8e1dde8dcd8264a8bbe13__32658(O 
F) nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache binfmt_misc
ipt_MASQUERA 
DE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack 
nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle tun bridge stp llc
ip6table_f 
ilter ip6_tables iptable_filter ip_tables ebtable_nat ebtables sg qeth_l2 vmur
n 
fsd auth_rpcgss nfs_acl lockd sunrpc xfs libcrc32c dasd_fba_mod lcs ctcm fsm
das 
d_eckd_mod qeth qdio dasd_mod ccwgroup dm_mirror dm_region_hash dm_log dm_mod
[l 
ast unloaded: stap_cd7de823793eceac21f7a774e5b77a25__27834] 
[ 2365.195807] CPU: 0 PID: 32658 Comm: stapio Tainted: GF         
O------------ 
--   3.10.0-123.8.1.el7.s390x #1 
[ 2365.195813] task: 000000007ced8910 ti: 000000005dbd4000 task.ti:
000000005dbd 
4000 
[ 2365.195886] Krnl PSW : 0704d00180000000 00000000005af91e
(mutex_lock+0x2e/0x6 
0) 
[ 2365.195892]            R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:1 PM:0
EA: 
3 
Krnl GPRS: 0000000000000081 0000000000000001 00000000ffffffff 0000000000000000 
[ 2365.195896]            0000000000999f70 0000000000000001 0000000000000000
000 
0000000000000 
[ 2365.195905]            0000000000000008 0000000000000020 0000000000000001
000 
003ffffbebd74 
[ 2365.195925]            000000005dbd7d68 0000000000000020 000000005dbd7ca0
000 
000005dbd7c80 
[ 2365.195936] Krnl Code: 00000000005af916: 5830d000            l      
%r3,0(%r 
13) 
           00000000005af91a: 1823               lr      %r2,%r3 
          #00000000005af91c: 1b21               sr      %r2,%r1 
          >00000000005af91e: ba32d000           cs      %r3,%r2,0(%r13) 
           00000000005af922: a744fffc           brc     4,5af91a 
           00000000005af926: ec24000d007e       cij     %r2,0,4,5af940 
           00000000005af92c: e31003100004       lg      %r1,784 
           00000000005af932: e310d018002401: HCPGSP2629I The virtual machine is 
placed in CP mode due to a SIGP stop from 
 CPU 01. 
       stg     %r1,24(%r13) 
[ 2365.196063] Call Trace: 
[ 2365.196065] ([<0000000000936ba8>] uaccess+0x0/0x50) 
[ 2365.196069]  [<0000000000150ff0>] flush_workqueue+0x78/0x5a8 
[ 2365.196073]  [<000003ff803050de>] _stp_cleanup_and_exit+0xe6/0x5f8
[stap_67b0 
151b97c8e1dde8dcd8264a8bbe13__32658] 
[ 2365.196094]  [<000003ff8030581c>] _stp_ctl_write_cmd+0x22c/0x458
[stap_67b015 
1b97c8e1dde8dcd8264a8bbe13__32658] 
[ 2365.196111]  [<000000000027650a>] vfs_write+0xa2/0x1c8 
[ 2365.196116]  [<0000000000277018>] SyS_write+0x60/0xb0 
[ 2365.196119]  [<00000000005b28a4>] sysc_tracego+0x14/0x1a 
[ 2365.196124]  [<000003fffd76f3e8>] 0x3fffd76f3e8 
[ 2365.196129] Last Breaking-Event-Address: 
[ 2365.196132]  [<0000000000150fea>] flush_workqueue+0x72/0x5a8 
[ 2365.196136] 
[ 2365.196139] Kernel panic - not syncing: Fatal exception: panic_on_oops 
[ 2365.196201] Stap trace buffer for processor 0 sub-buffer 0: 
[ 2365.196205] The following may not have been sent to the display: 
[ 2365.196208] toggling 
[ 2365.196212] systemtap_module_init:59253: not starting (hrtimer) pidx 0 
[ 2365.196236] toggling 
[ 2365.196237] toggling 
[ 2365.196242] toggling 
[ 2365.196254] toggling 
[ 2365.196255] toggling 
[ 2365.196256] toggling 
[ 2365.196257] toggling 
[ 2365.196257] toggling 
[ 2365.196258] toggling 
[ 2365.196259] toggling 
[ 2365.196259] toggling 
[ 2365.196260] toggling 
[ 2365.196261] toggling 
[ 2365.196262] toggling 
[ 2365.196262] toggling 

[ ... ]

-- 
You are receiving this mail because:
You are the assignee for the bug.