Hi All,
I'm noticing that a iozone sanity check fails on the latest cvs code
with 2.6.16 (fedora core 4). I think the server is crashing. I'm
doing
this all on one node. This works successfully with 1.5.1.
In /var/log/messages:
Jul 18 13:19:22 foufoune kernel: pvfs2_permission: inode: e4225e10
mask
= 1 mode = 43ff current->fsuid = 0 inode->i_uid = 0, inode->i_gid = 0
ret = 0
Jul 18 13:19:22 foufoune kernel: pvfs2_permission: mode [43ff] & mask
[1] & S_IRWXO [7] = 1 == mask [1]?
Jul 18 13:19:22 foufoune kernel: pvfs2_permission: inode: e4225e10
mask
= 1 mode = 43ff current->fsuid = 0 inode->i_uid = 0, inode->i_gid = 0
ret = 0
Jul 18 13:19:22 foufoune kernel: pvfs2_permission: mode [43ff] & mask
[1] & S_IRWXO [7] = 1 == mask [1]?
Jul 18 13:19:22 foufoune kernel: pvfs2_lookup called on a2
Jul 18 13:19:22 foufoune kernel: Alloced OP (e02543a0: 121 OP_LOOKUP)
Jul 18 13:19:22 foufoune kernel: pvfs2_lookup: doing lookup on a2
Jul 18 13:19:22 foufoune kernel: under 1048576,408205455 (follow=no)
Jul 18 13:19:22 foufoune kernel: pvfs2: service_operation:
pvfs2_lookup
e02543a0
Jul 18 13:19:22 foufoune kernel: client-core: reading op tag 121
OP_LOOKUP
Jul 18 13:19:22 foufoune kernel: (get) Alloced OP (e02543a0:121)
Jul 18 13:19:22 foufoune kernel: pvfs2: service_operation pvfs2_lookup
returning: -2 for e02543a0.
Jul 18 13:19:22 foufoune kernel: Lookup Got 0, fsid 0 (ret=-2)
Jul 18 13:19:22 foufoune kernel: pvfs2_lookup: Adding *negative*
dentry
e4d28914Jul 18 13:19:22 foufoune kernel: for a2
Jul 18 13:19:22 foufoune kernel: Releasing OP (e02543a0: 121)
Jul 18 13:19:22 foufoune kernel: pvfs2_permission: inode: e4225e10
mask
= 3 mode = 43ff current->fsuid = 0 inode->i_uid = 0, inode->i_gid = 0
ret = 0
Jul 18 13:19:22 foufoune kernel: pvfs2_create: called
Jul 18 13:19:22 foufoune kernel: Alloced OP (e02543a0: 122 OP_CREATE)
Jul 18 13:19:22 foufoune kernel: pvfs2: service_operation:
pvfs2_create_file e02543a0
Jul 18 13:19:22 foufoune kernel: client-core: reading op tag 122
OP_CREATE
Jul 18 13:19:22 foufoune kernel: (get) Alloced OP (e02543a0:122)
Jul 18 13:19:22 foufoune kernel: pvfs2: service_operation
pvfs2_create_file returning: 0 for e02543a0.
Jul 18 13:19:22 foufoune kernel: Create Got PVFS2 handle 1048573 on
fsid
408205455 (ret=0)
Jul 18 13:19:22 foufoune kernel: pvfs2_get_custom_inode: called
Jul 18 13:19:22 foufoune kernel: (sb is f6e98600 | MAJOR(dev)=0 |
MINOR(dev)=0)
Jul 18 13:19:22 foufoune kernel: pvfs2_alloc_inode: allocated e42251f4
Jul 18 13:19:22 foufoune kernel: pvfs2_read_inode: e42251f4 (inode =
1048573 | ct = 1)
Jul 18 13:19:22 foufoune kernel: pvfs2_inode_getattr: called on inode
1048573
Jul 18 13:19:22 foufoune kernel: Alloced OP (e0260420: 123 OP_GETATTR)
Jul 18 13:19:22 foufoune kernel: pvfs2: service_operation:
pvfs2_inode_getattr e0260420
Jul 18 13:19:22 foufoune kernel: client-core: reading op tag 123
OP_GETATTR
Jul 18 13:19:22 foufoune kernel: (get) Alloced OP (e0260420:123)
Jul 18 13:19:22 foufoune kernel: pvfs2: service_operation
pvfs2_inode_getattr returning: 0 for e0260420.
Jul 18 13:19:22 foufoune kernel: attrs->mask = 710007f (1048576,
objtype
= 1), size = 0
Jul 18 13:19:22 foufoune kernel: pvfs2: copy_attributes_to_inode:
setting inode->i_mode to 8000 from 0
Jul 18 13:19:22 foufoune kernel: Getattr on handle 1048573, fsid
408205455
Jul 18 13:19:22 foufoune kernel: (inode ct = 1) returned 0
Jul 18 13:19:22 foufoune kernel: Releasing OP (e0260420: 123)
Jul 18 13:19:22 foufoune kernel: pvfs2_get_custom_inode: inode
e4225224
allocated
Jul 18 13:19:22 foufoune kernel: (pvfs2_inode is e42251f4 | sb is
f6e98600)
Jul 18 13:19:22 foufoune kernel: Assigned file inode new number of
1048573
Jul 18 13:19:22 foufoune kernel: pvfs2_create_file: Instantiating
Jul 18 13:19:22 foufoune kernel: *negative* dentry e4d28914 for a2
Jul 18 13:19:22 foufoune kernel: Releasing OP (e02543a0: 122)
Jul 18 13:19:22 foufoune kernel: pvfs2_create: returning 0
Jul 18 13:19:22 foufoune kernel: pvfs2_permission: inode: e4225224
mask
= 0 mode = 8000 current->fsuid = 0 inode->i_uid = 0, inode->i_gid = 0
ret = 0
Jul 18 13:19:22 foufoune kernel: pvfs2_permission: mode [8000] & mask
[0] & S_IRWXO [7] = 0 == mask [0]?
Jul 18 13:19:22 foufoune kernel: pvfs2_file_open: called on a2
(inode is
1048573)
Jul 18 13:19:22 foufoune kernel: pvfs2_file_open returning normally: 0
Jul 18 13:19:22 foufoune kernel: pvfs2_setattr: called on a2
Jul 18 13:19:22 foufoune kernel: pvfs2: pvfs2_truncate called on inode
1048573 with size 0
Jul 18 13:19:22 foufoune kernel: pvfs2: pvfs2_truncate_inode 1048573:
Handle is 1048573 | fs_id 408205455 | size is 0
Jul 18 13:19:22 foufoune kernel: Alloced OP (e02543a0: 124
OP_TRUNCATE)
Jul 18 13:19:22 foufoune kernel: pvfs2: service_operation:
pvfs2_truncate_inode e02543a0
Jul 18 13:19:22 foufoune kernel: client-core: reading op tag 124
OP_TRUNCATE
Jul 18 13:19:32 foufoune kernel: (get) Alloced OP (e02543a0:124)
Jul 18 13:19:32 foufoune kernel: pvfs2: service_operation
pvfs2_truncate_inode returning: -111 for e02543a0.
Jul 18 13:19:32 foufoune kernel: pvfs2: pvfs2_truncate got return
value
of -111
Jul 18 13:19:32 foufoune kernel: Releasing OP (e02543a0: 124)
Jul 18 13:19:32 foufoune kernel: pvfs2_setattr: inode_setattr
returned 0
Jul 18 13:19:32 foufoune kernel: Alloced OP (e02543a0: 125 OP_SETATTR)
Jul 18 13:19:32 foufoune kernel: mode is 32768 | translated perms is 0
Jul 18 13:19:32 foufoune kernel: pvfs2: service_operation:
pvfs2_inode_setattr e02543a0
Jul 18 13:19:32 foufoune kernel: client-core: reading op tag 125
OP_SETATTR
Jul 18 13:19:42 foufoune kernel: (get) Alloced OP (e02543a0:125)
Jul 18 13:19:42 foufoune kernel: pvfs2: service_operation
pvfs2_inode_setattr returning: -111 for e02543a0.
Jul 18 13:19:42 foufoune kernel: pvfs2_inode_setattr: returning -111
Jul 18 13:19:42 foufoune kernel: Releasing OP (e02543a0: 125)
Jul 18 13:19:42 foufoune kernel: pvfs2_setattr: returning -111
Jul 18 13:19:42 foufoune kernel: pvfs2_file_release: called on a2
I attached the /tmp/pvfs2-client.log:
I didn't have logging on the server, but there isn't any errors in the
server log.
The code that fails (from iozone.c) is below. I just ran 'iozone -aec
-i 0 -i 1 -+n -f /mnt/pvfs2/a2'
/* Sanity check */
/* Some filesystems do not behave correctly and fail
* when this sequence is performned. This is a very
* bad thing. It breaks many applications and lurks
* around quietly. This code should never get
* triggered, but in the case of running iozone on
* an NFS client, the filesystem type on the server
* that is being exported can cause this failure.
* If this failure happens, then the NFS client is
* going to going to have problems, but the acutal
* problem is the filesystem on the NFS server.
* It's not NFS, it's the local filesystem on the
* NFS server that is not correctly permitting
* the sequence to function.
*/
if((fd = I_OPEN(filename, (int)O_CREAT|O_WRONLY,0))<0)
{
printf("\nCan not open temp file: %s\n",
filename);
perror("open");
exit(44);
}
wval=ftruncate(fd,0);
if(wval < 0)
{
printf("Sanity check failed. Do not deploy this
filesystem in a production environment !\n");
exit(44);
}
close(fd);
unlink(filename);
/* Sanity check */
--
Dean Hildebrand
Ph.D. Candidate
University of Michigan
