Messages in this thread | | | From | "Ulrich Windl" <> | Date | Mon, 29 Apr 1996 08:01:31 +0200 | Subject | RTC driver bug in 1.3.91 |
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(Sorry, one of my disks with 1.3.95 had a CRC error) In 1.3.91 the driver for /dev/rtc has a rather serious bug:
I had enabled periodic interrupts for a never ending loop. Unfortunately I had a programming error in the program that made me hit ^C. The program really stopped, but I wasn't able to successfully start it again. Although I checked the error codes in my program, no errors were signalled. I just seemed that no interrupts are delivered to the program (i.e. read() from /dev/rtc lasts forever). "ps -l" indicates that the process is blocked on "rtc_interrupt".
Roughly browsing the code showed that there's one pair with save_flags/restore_flags, but without cli() between. Maybe it's related, maybe it's not.
In fact I assume that upon termination of a process the open files are closed (such as /dev/rtc). Maybe there's some code missing that does a proper cleanup.
Ulrich
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