Messages in this thread |  | | Date | Fri, 27 Sep 1996 09:05:50 -0400 | From | "Sheldon E. Newhouse" <> | Subject | minor kill and mmap problem |
| |
I reported earlier that kill -1 pid of nfsd run two times on one of my systems (named pokie) killed the nfsd On another system (named elsie) it did not.
The first system (pokie) is P5-133, 96 MB RAM, AHA2940. The second system (elsie) is P5-100, 48 MB RAM, ide.
I did an strace of kill -1 pid of nfsd on each and here is a diff on those.
Also, after starting nfs, I did an strace of kill -1 pid of nfsd on pokie twice and got no difference,
sen1@pokie tmp]$ diff strace.log.pokie strace.log.elsie 2c2 < stat("/etc/ld.so.cache", {st_mode=S_IFREG|0644, st_size=6531, ...}) = 0 --- > stat("/etc/ld.so.cache", {st_mode=S_IFREG|0644, st_size=3463, ...}) = 0 4c4 < mmap(0, 6531, PROT_READ, MAP_SHARED, 3, 0) = 0x40007000 --- > mmap(0, 3463, PROT_READ, MAP_SHARED, 3, 0) = 0x40007000 8,11c8,11 < mmap(0, 811008, PROT_NONE, MAP_PRIVATE|0x20, 4294967295, 0) = 0x40009000 < mmap(0x40009000, 582809, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x40009000 < mmap(0x40098000, 21452, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x8e000) = 0x40098000 < mmap(0x4009e000, 199588, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|0x20, 4294967295, 0) = 0x4009e000 --- > mmap(0, 811008, PROT_NONE, MAP_PRIVATE|0x20, 4294967295, 0) = 0x40008000 > mmap(0x40008000, 582809, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x40008000 > mmap(0x40097000, 21452, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x8e000) = 0x40097000 > mmap(0x4009d000, 199588, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|0x20, 4294967295, 0) = 0x4009d000 13c13 < munmap(0x40007000, 6531) = 0 --- > munmap(0x40007000, 3463) = 0 15c15 < kill(346, SIGHUP) = 0 --- > kill(114, SIGHUP) = 0
This is not a big problem for me since I have only a few users on these systems and can easily start and stop nfsd. On big systems with many users, it may cause problems when the /etc/exports file needs to be read again.
-sen
--------------------------------------------------------------------------- | Sheldon E. Newhouse | e-mail: sen1@math.msu.edu | | Mathematics Department | | | Michigan State University | telephone: 517-355-9684 | | E. Lansing, MI 48824-1027 USA | FAX: 517-432-1562 | ---------------------------------------------------------------------------
|  |