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| author | Jens Axboe <axboe@kernel.dk> | 2017-11-04 22:10:00 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-11-04 22:10:00 -0600 |
| commit | ab6809de8aa6c1e2bac1e2d9167e5232f0cccfeb (patch) | |
| tree | 645e1072f43b6fbd3e543056dc4526a18773b4d5 /btrace.spec | |
| parent | 8772bc4fb049bdd879de5952d6f291a34112fae0 (diff) | |
| download | blktrace-ab6809de8aa6c1e2bac1e2d9167e5232f0cccfeb.tar.gz blktrace-ab6809de8aa6c1e2bac1e2d9167e5232f0cccfeb.tar.bz2 | |
blktrace: abort if device ioctl setup fails
If we fail doing the BLKTRACESETUP ioctl, blktrace still marches on
and sets up the rest. This results in errors like the below:
blktrace /dev/sdf
BLKTRACESETUP(2) /dev/sdf failed: 5/Input/output error
Thread 1 failed open /sys/kernel/debug/block/(null)/trace1: 2/No such file or directory
Thread 3 failed open /sys/kernel/debug/block/(null)/trace3: 2/No such file or directory
Thread 2 failed open /sys/kernel/debug/block/(null)/trace2: 2/No such file or directory
[...]
FAILED to start thread on CPU 0: 1/Operation not permitted
FAILED to start thread on CPU 1: 1/Operation not permitted
FAILED to start thread on CPU 2: 1/Operation not permitted
and blktrace continues to run, though it can't do anything in this
state.
If the ioctl setup fails, just abort.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'btrace.spec')
0 files changed, 0 insertions, 0 deletions