DragonFly bugs List (threaded) for 2012-08
[DragonFlyBSD - Bug #2364] panic: lockmgr: locking against myself
Issue #2364 has been updated by Alex Hornung.
Link to the gist seems to be gone. I found the content in google's webcache:
/* dd if=/dev/zero of=test bs=1 count=7168 */
struct stat sb;
int i0, i;
fd = open(argv, O_RDWR);
mmap_region = mmap(NULL, 4096 * 2, PROT_READ|PROT_WRITE,MAP_PRIVATE,
mmap_region = 'b';
lseek(fd, 0, SEEK_SET);
write(fd, mmap_region, sb.st_size);
Bug #2364: panic: lockmgr: locking against myself
Author: John Marino
Assignee: Venkatesh Srinivas
This is an easily repeatable panic.
Edit a file with size > 4096 bytes using /usr/pkg/bin/heme, and save.
Seen on i386 on Virtualbox but already reproduced independently by vrinivas.
DragonFly a4d7a8c-DEVELOPMENT #4: Mon May 7 18:55:28 CEST 2012 root@:/usr/obj/usr/src/sys/GENERIC
core dump located in leaf ~marino/crash
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