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| author | Patrick Williams <iawillia@us.ibm.com> | 2012-07-06 15:14:21 -0500 |
|---|---|---|
| committer | A. Patrick Williams III <iawillia@us.ibm.com> | 2012-07-09 13:49:14 -0500 |
| commit | b6c438bc018f7102568b7c80927e3f9d77eec40a (patch) | |
| tree | 9d9fece1432701e049c4bf46e69382ad97aada4e /src/usr/hwpf/ifcompiler/initCompiler.C | |
| parent | 434253f2763c99351a8c790f43704cca816ba442 (diff) | |
| download | blackbird-hostboot-b6c438bc018f7102568b7c80927e3f9d77eec40a.tar.gz blackbird-hostboot-b6c438bc018f7102568b7c80927e3f9d77eec40a.zip | |
Deadlock in XSCOM
Previously the code was calling into targeting, to determine the
XSCOM base address for the target, while holding the HW thread's
XSCOM mutex. This can cause a deadlock where PNOR is unable to
be accessed because some thread is accessing targeting content
which is not paged in but is also holding the XSCOM mutex. Moved
mutex claiming to after targeting address lookup.
Change-Id: Ic5de75519159f8a1d7fa7fdcb94979d43c73ffad
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1329
Tested-by: Jenkins Server
Reviewed-by: Melissa J. Connell <missyc@us.ibm.com>
Reviewed-by: Thi N. Tran <thi@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
Diffstat (limited to 'src/usr/hwpf/ifcompiler/initCompiler.C')
0 files changed, 0 insertions, 0 deletions
