Dear list:
I am not sure, it is suitable posing the message to this list. But this
obsessed me for a long time.
####Problem description:
I am running a fortran program, that doing some computation works and saves
data to the
working directory.
I started the program at an automounted directory, here, in my situation,
the directory is
/work/zws_work/origin1.
when the program run, I got CLOSE error randomly.
I also run the same copy of binary on a local disk, It never fail.
so I doubt is it the autofs problem?
But I have no idea how recognize and solve it,
Switching to a newer version of automount daemon may solve this problem?
### contents of /etc/auto.master
/work /etc/auto.work --timeout=300
###system information
[root@ln0 ~]# uname -a;automount -V
Linux ln0 2.6.18-194.17.1.0.1.el5_lustre.1.8.5 #1 SMP Wed Aug 3 18:09:09 CST
2011 x86_64 x86_64 x86_64 GNU/Linux
Linux automount version 5.0.1-0.rc2.143.el5
Directories:
config dir: /etc/sysconfig
maps dir: /etc
modules dir: /usr/lib64/autofs
Compile options:
DISABLE_MOUNT_LOCKING ENABLE_IGNORE_BUSY_MOUNTS WITH_HESIOD WITH_LDAP
WITH_SASL
[zws@c37b20 origin1]$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.5 (Tikanga)
#####[root@ln0 ~]# cat /etc/auto.work
* -rw,soft,intr,proto=udp ibworkserver:/home/&
the fortran code fragment:
1269 fid = 4444
1270 fn = trim(pwd) // '/' // trim(name)
1272 open(fid,file=trim(fn),form='unformatted')
1273 write(fid) model%tmp%elec_down%len
1274 write(fid) model%tmp%elec_down%num
1275 write(fid) model%tmp%elec_down%dim
1276 write(fid) model%tmp%elec_down%up_dif
1277 write(fid) model%tmp%elec_down%down_dif
1278
1279 do i=1,model%tmp%elec_down%num
1280 write(fid)
1281 write(fid)
model%tmp%elec_down%sub(i)%num_up,model%tmp%elec_down%sub(i)%num_down
1282 write(fid)
model%tmp%elec_down%sub(i)%row_dim,model%tmp%elec_down%sub(i)%sdim
1283 do y=1,model%tmp%elec_down%sub(i)%sdim
1284 do x=1,model%tmp%elec_down%sub(i)%row_dim
1285 write(fid) model%tmp%elec_down%sub(i)%mat(x,y)
1286 end do
1287 end do
1288 end do
1289
1290
1291
1292
1293 status = 0
1303 INQUIRE(UNIT=fid, OPENED=opened, NAME=fname)
1304 print *, 'model_to_disk about closing after inquire:', trim(fn),
',opened=', opened, ',fname=', trim(fname)
1305 close(fid)
1306 .....
at this code fragment, I randomly get error like this:
19367 truns_to_disk about closing after
inquire:/work/zws_work/origin1/systruns24
19368 ,opened= T ,fname=/work/zws_work/origin1/systruns24
19370 forrtl: Input/output error
19371 forrtl: severe (28): CLOSE error, unit 4444, file "Unknown"
19372 Image PC Routine Line
Source
19373 Kitaev_DMRG1 0000000000533CED Unknown Unknown
Unknown
19374 Kitaev_DMRG1 00000000005327F5 Unknown Unknown
Unknown
19375 Kitaev_DMRG1 00000000004DCE00 Unknown Unknown
Unknown
19376 Kitaev_DMRG1 000000000049F7CF Unknown Unknown
Unknown
19377 Kitaev_DMRG1 000000000049F002 Unknown Unknown
Unknown
19378 Kitaev_DMRG1 000000000049CE61 Unknown Unknown
Unknown
19379 Kitaev_DMRG1 0000000000409D44 wave_to_disk_ 1073
space_info.f90
19380 Kitaev_DMRG1 000000000046B5DF left_to_right_ 705
warm_up.f90
19381 Kitaev_DMRG1 0000000000497571 MAIN__ 45
quantum.f90
19382 Kitaev_DMRG1 0000000000403A7C Unknown Unknown
Unknown
19383 libc.so.6 0000003AF641D994 Unknown Unknown
Unknown
19384 Kitaev_DMRG1 0000000000403989 Unknown Unknown
Unknown
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