Messages in this thread | | | Subject | Re: 2.4.0-test5 bug: invalid "shmid_kernel" passed to "shm_nopage_core" | From | (Kevin Buhr) | Date | 19 Dec 2000 12:11:52 -0600 |
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Christoph Rohland <cr@sap.com> writes: > > I am just running a stress test on 2.4.0-test13-pre3 + appended patch > without problems. Is the shm segment deleted sometimes or is it always > the same segment?
IIRC, in my particular crash case, the Enlightenment window manager was using the X shared memory extension to take snapshots of the screen for its little desktop pager window around 30 times a second; Mozilla was also sharing some memory with the X server for something.
The code in Enlightenment did a complete shmget/shmat/shmctl(RMID)/shmdt cycle, so that segment *was* being constantly deleted. The Mozilla ones stuck around. The particular address that was being reference in the shm_nopage_core call corresponded to the segments being created and deleted by Enlightenment, however.
Thanks for the locking tutorial, too.
Kevin <buhr@stat.wisc.edu> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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