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Accepting request 1073624 from home:lwfinger:branches:Virtualization

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- File "fixes_for_kernel_6.3.patch" is updated for more API changes
  File "fix_7.0.6_locking_problems.patch" is added. Fixes boo#1209529.
    Larry Len Rainey and I have worked on this bug for some time. It only
    happened on systems with large numbers of processors and many virtual
    machines. We suspected a locking problem, but the thought of auditing
    the entire code was daunting until it was discovered that there was no
    problem if the host ran VB 6.1.40. It did not matter what version the
    guests were running. That essentially eliminated every code part except
    for vboxdrv.ko. That made the audit tractable. There were two files and
    a total of 8 places where the locking was suspect. When those were
    changed, the lockups while using 7.0.6 host code were no longer observed.
    The lockups were infrequent, thus it is impossible to say that we have
    fixed everything, but the frequency is clearly diminished.

  spec-cleaner used to remove extra blank line is spec file.

OBS-URL: https://build.opensuse.org/request/show/1073624
OBS-URL: https://build.opensuse.org/package/show/Virtualization/virtualbox?expand=0&rev=685
This commit is contained in:
Larry Finger
2023-03-21 19:09:44 +00:00
committed by Git OBS Bridge
parent a36b6afde9
commit 6b7b0965af
4 changed files with 429 additions and 25 deletions
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@@ -1,8 +1,27 @@
-------------------------------------------------------------------
Tue Mar 21 17:05:39 UTC 2023 - Larry Finger <Larry.Finger@gmail.com>
- File "fixes_for_kernel_6.3.patch" is updated for more API changes
File "fix_7.0.6_locking_problems.patch" is added. Fixes boo#1209529.
Larry Len Rainey and I have worked on this bug for some time. It only
happened on systems with large numbers of processors and many virtual
machines. We suspected a locking problem, but the thought of auditing
the entire code was daunting until it was discovered that there was no
problem if the host ran VB 6.1.40. It did not matter what version the
guests were running. That essentially eliminated every code part except
for vboxdrv.ko. That made the audit tractable. There were two files and
a total of 8 places where the locking was suspect. When those were
changed, the lockups while using 7.0.6 host code were no longer observed.
The lockups were infrequent, thus it is impossible to say that we have
fixed everything, but the frequency is clearly diminished.
-------------------------------------------------------------------
Mon Mar 6 21:14:12 UTC 2023 - Larry Finger <Larry.Finger@gmail.com>
- Added file "fixes_for_kernel_6.3.patch" to handle API change.
- File "fixes_for_gcc13.patch" updated for additional changes in GCC 13 boo#1207468
spec-cleaner used to remove extra blank line is spec file.
-------------------------------------------------------------------
Wed Mar 1 16:13:24 UTC 2023 - Larry Finger <Larry.Finger@gmail.com>