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2d19b736ed
specifics of callout KPI. Esp., do not depend on the exact interface of callout_stop(9) return values. The main change is that instead of requiring precise callouts, code maintains absolute time to wake up. Callouts now should ensure that a wake occurs at the requested moment, but we can tolerate both run-away callout, and callout_stop(9) lying about running callout either way. As consequence, it removes the constant source of the bugs where sleepq_check_timeout() causes uninterruptible thread state where the thread is detached from CPU, see e.g. r234952 and r296320. Patch also removes dual meaning of the TDF_TIMEOUT flag, making code (IMO much) simpler to reason about. Tested by: pho Reviewed by: jhb Sponsored by: The FreeBSD Foundation MFC after: 1 month Differential revision: https://reviews.freebsd.org/D7137 |
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| .. | ||
| db_access.c | ||
| db_access.h | ||
| db_break.c | ||
| db_break.h | ||
| db_capture.c | ||
| db_command.c | ||
| db_command.h | ||
| db_examine.c | ||
| db_expr.c | ||
| db_input.c | ||
| db_lex.c | ||
| db_lex.h | ||
| db_main.c | ||
| db_output.c | ||
| db_output.h | ||
| db_print.c | ||
| db_ps.c | ||
| db_run.c | ||
| db_script.c | ||
| db_sym.c | ||
| db_sym.h | ||
| db_textdump.c | ||
| db_thread.c | ||
| db_variables.c | ||
| db_variables.h | ||
| db_watch.c | ||
| db_watch.h | ||
| db_write_cmd.c | ||
| ddb.h | ||