diff options
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-12-01 07:32:17 -0500 |
|---|---|---|
| committer | Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> | 2011-12-12 08:07:09 -0500 |
| commit | c28cee94593042f422259d76f8cdd4ecf447a271 (patch) | |
| tree | 369ae1baffb422d095433e9cbef5da3223646190 /kernel/irq/manage.c | |
| parent | acfaab14513e31da85996af542e9e0cfe40308b7 (diff) | |
add missing .set function for NT_S390_LAST_BREAK regset
BugLink: http://bugs.launchpad.net/bugs/902312
commit b934069c991355d27a053a932591c77960f4e414 upstream.
The last breaking event address is a read-only value, the regset misses the
.set function. If a PTRACE_SETREGSET is done for NT_S390_LAST_BREAK we
get an oops due to a branch to zero:
Kernel BUG at 0000000000000002 verbose debug info unavailable
illegal operation: 0001 #1 SMP
...
Call Trace:
(<0000000000158294> ptrace_regset+0x184/0x188)
<00000000001595b6> ptrace_request+0x37a/0x4fc
<0000000000109a78> arch_ptrace+0x108/0x1fc
<00000000001590d6> SyS_ptrace+0xaa/0x12c
<00000000005c7a42> sysc_noemu+0x16/0x1c
<000003fffd5ec10c> 0x3fffd5ec10c
Last Breaking-Event-Address:
<0000000000158242> ptrace_regset+0x132/0x188
Add a nop .set function to prevent the branch to zero.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Diffstat (limited to 'kernel/irq/manage.c')
0 files changed, 0 insertions, 0 deletions