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Opened on 06/09/15 at 07:40:10
Closed on 02/05/18 at 07:49:50
#2363 closed defect (duplicate)
SPARC: Silent FP context corruption possible
| Reported by: | Sebastian Huber | Owned by: | |
|---|---|---|---|
| Priority: | lowest | Milestone: | 5.1 |
| Component: | arch/sparc | Version: | 4.11 |
| Severity: | critical | Keywords: | |
| Cc: | Blocked By: | ||
| Blocking: |
Description
On uni-processor configurations the post-switch actions (e.g. signal handlers) and context switch extensions may silently corrupt the floating point context. Set test sptests/spcontext01.
This problem exists for many years and might be working as intended. It is possible to fix this issue using the SPARC_USE_SAFE_FP_SUPPORT option. This is already used for the SMP configurations. The disadavantage is that this disables the deferred floating point support.
Change History (4)
comment:1 Changed on 01/26/17 at 07:16:00 by Sebastian Huber
| Milestone: | 4.11.1 → 4.11.2 |
|---|
comment:2 Changed on 03/23/17 at 01:04:45 by Chris Johns
| Milestone: | 4.11.2 → 4.11.3 |
|---|
comment:3 Changed on 02/05/18 at 04:39:20 by Chris Johns
| Milestone: | 4.11.3 → Indefinite |
|---|
Requires funding.
comment:4 Changed on 02/05/18 at 07:49:50 by Sebastian Huber
| Component: | score → arch/sparc |
|---|---|
| Milestone: | Indefinite → 5.1 |
| Resolution: | → duplicate |
| Status: | new → closed |
Fixed by #3077.
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The 4.11.2 milestone is closing.