Opened on 07/22/20 at 12:38:02
Closed on 07/29/20 at 09:41:18
#4030 closed defect (fixed)
i386: ISR can overwrite its own stack during system initialization
Reported by: | Jan Sommer | Owned by: | Jan Sommer <jan.sommer@…> |
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Priority: | normal | Milestone: | 5.1 |
Component: | arch/i386 | Version: | 5 |
Severity: | major | Keywords: | |
Cc: | Blocked By: | ||
Blocking: |
Description
During testing the rtems-libbsd examples, we experienced GP exceptions from within the ISR from time to time during initalization.
When the init task is restored for the first time and the a pending interrupt is available, an ISR could overwrite its own return address if it is spawned between restoring the eflags register and restoring the esp register.
Change History (1)
comment:1 Changed on 07/29/20 at 09:41:18 by Jan Sommer <jan.sommer@…>
Owner: | set to Jan Sommer <jan.sommer@…> |
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Resolution: | → fixed |
Status: | new → closed |
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