diff options
| author | Peter Oberparleiter <oberpar@linux.ibm.com> | 2024-06-20 14:20:27 +0200 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2024-07-01 17:47:01 +0200 |
| commit | bf365071ea92b9579d5a272679b74052a5643e35 (patch) | |
| tree | 8620628c8a32de390466518634fe616ff1ce5c88 /scripts/gdb/linux/clk.py | |
| parent | ecec74bbfc6fb1885355aa0337f3452146e8caff (diff) | |
s390/sclp: Prevent release of buffer in I/O
When a task waiting for completion of a Store Data operation is
interrupted, an attempt is made to halt this operation. If this attempt
fails due to a hardware or firmware problem, there is a chance that the
SCLP facility might store data into buffers referenced by the original
operation at a later time.
Handle this situation by not releasing the referenced data buffers if
the halt attempt fails. For current use cases, this might result in a
leak of few pages of memory in case of a rare hardware/firmware
malfunction.
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'scripts/gdb/linux/clk.py')
0 files changed, 0 insertions, 0 deletions