Searched hist:136177 (Results 1 - 2 of 2) sorted by relevance
| /freebsd-11-stable/sys/kern/ | ||
| H A D | kern_thread.c | diff 136177 Tue Oct 05 22:40:41 MDT 2004 davidxu In original kern_execve() code, at the start of the function, it forces all other threads to suicide, problem is execve() could be failed, and a failed execve() would change threaded process to unthreaded, this side effect is unexpected. The new code introduces a new single threading mode SINGLE_BOUNDARY, in the mode, all threads should suspend themself at user boundary except the singler. we can not use SINGLE_NO_EXIT because we want to start from a clean state if execve() is successful, suspending other threads at unknown point and later resuming them from there and forcing them to exit at user boundary may cause the process to start from a dirty state. If execve() is successful, current thread upgrades to SINGLE_EXIT mode and forces other threads to suicide at user boundary, otherwise, other threads will be resumed and their interrupted syscall will be restarted. Reviewed by: julian |
| /freebsd-11-stable/sys/sys/ | ||
| H A D | proc.h | diff 136177 Tue Oct 05 22:40:41 MDT 2004 davidxu In original kern_execve() code, at the start of the function, it forces all other threads to suicide, problem is execve() could be failed, and a failed execve() would change threaded process to unthreaded, this side effect is unexpected. The new code introduces a new single threading mode SINGLE_BOUNDARY, in the mode, all threads should suspend themself at user boundary except the singler. we can not use SINGLE_NO_EXIT because we want to start from a clean state if execve() is successful, suspending other threads at unknown point and later resuming them from there and forcing them to exit at user boundary may cause the process to start from a dirty state. If execve() is successful, current thread upgrades to SINGLE_EXIT mode and forces other threads to suicide at user boundary, otherwise, other threads will be resumed and their interrupted syscall will be restarted. Reviewed by: julian |
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