mirror of
https://github.com/apache/nuttx.git
synced 2026-08-03 05:09:00 +00:00
2241969e5a
cpu0 thread0: cpu1:
sched_yield()
nxsched_set_priority()
nxsched_running_setpriority()
nxsched_reprioritize_rtr()
nxsched_add_readytorun()
up_cpu_pause()
IRQ enter
arm64_pause_handler()
enter_critical_section() begin
up_cpu_paused() pick thread0
arm64_restorestate() set thread0 tcb->xcp.regs to CURRENT_REGS
up_switch_context()
thread0 -> thread1
arm64_syscall()
case SYS_switch_context
change thread0 tcb->xcp.regs
restore_critical_section()
enter_critical_section() done
leave_critical_section()
IRQ leave with restore CURRENT_REGS
ERROR !!!
Reason:
As descript above, cpu0 swith task: thread0 -> thread1, and the
syscall() execute slowly, this time cpu1 pick thread0 to run at
up_cpu_paused(). Then cpu0 syscall execute, cpu1 IRQ leave error.
Resolve:
Move arm64_restorestate() after enter_critical_section() done
This is a continued fix with:
https://github.com/apache/nuttx/pull/6833
Signed-off-by: ligd <liguiding1@xiaomi.com>
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| android | ||
| arpa | ||
| crypto | ||
| cxx | ||
| net | ||
| netinet | ||
| netpacket | ||
| nuttx | ||
| ssp | ||
| sys | ||
| .gitignore | ||
| aio.h | ||
| alloca.h | ||
| assert.h | ||
| byteswap.h | ||
| ctype.h | ||
| debug.h | ||
| dirent.h | ||
| dlfcn.h | ||
| dsp.h | ||
| dspb16.h | ||
| elf.h | ||
| elf32.h | ||
| elf64.h | ||
| endian.h | ||
| err.h | ||
| errno.h | ||
| execinfo.h | ||
| fcntl.h | ||
| fixedmath.h | ||
| fnmatch.h | ||
| ftw.h | ||
| getopt.h | ||
| glob.h | ||
| grp.h | ||
| hex2bin.h | ||
| iconv.h | ||
| ifaddrs.h | ||
| inttypes.h | ||
| iso646.h | ||
| langinfo.h | ||
| libgen.h | ||
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| limits.h | ||
| locale.h | ||
| lzf.h | ||
| malloc.h | ||
| mqueue.h | ||
| netdb.h | ||
| nl_types.h | ||
| nxflat.h | ||
| obstack.h | ||
| poll.h | ||
| pthread.h | ||
| pty.h | ||
| pwd.h | ||
| regex.h | ||
| resolv.h | ||
| sched.h | ||
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| signal.h | ||
| spawn.h | ||
| stdbool.h | ||
| stddef.h | ||
| stdint.h | ||
| stdio.h | ||
| stdlib.h | ||
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| string.h | ||
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| syscall.h | ||
| syslog.h | ||
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