On Mon, Apr 05, 2010 at 10:36:19PM +0200, Petr Salinger wrote: > >> > >>>>BTW, the 7.3 seems be unaffected by this. > >> > >>Confirmed, the whole build of gcc-4.3 ends with > >> > >>kern.maxvnodes: 100000 > >>kern.minvnodes: 25000 > >>vfs.freevnodes: 22070 > >>vfs.wantfreevnodes: 25000 > >>vfs.numvnodes: 39907 > >>debug.vnlru_nowhere: 0 > >> > >>while for 8.0 kernel even 120000 in vfs.numvnodes does not suffice. > >BTW, can you check latest RELENG_8 kernel, or HEAD, for the issue ? > > Both are affected, the ddb output bellow is from svn206142 for HEAD. > > >>Are all vnodes in some mountpoint ? What pipes and sockets ? > >I do not quite understand the question. > > > >Pipes and sockets are not vnodes, and I want to see what type of > >filesystem (UFS or devfs) leaks. > > I lowered max to get problem earlier > > kern.maxvnodes: 40000 > kern.minvnodes: 25000 > vfs.freevnodes: 0 > vfs.wantfreevnodes: 25000 > vfs.numvnodes: 37934 > debug.vnlru_nowhere: 83 > > I would expect that sum of mnt_nvnodelistsize should be vfs.numvnodes. > The sum is at about 3400, but the vfs.numvnodes is at about 38000. > Is my expectation correct ? Not quite, reclaimed vnode is removed from mp list. Can you check that vmstat -z | grep VNODE output coincides with sysctl vfs.numvnodes ?
Also, can you unmount linprocfs before the test and see whether it
leaks as before ?
Another thing to try is set sysctl debug.disablefullpath to 1.
Thanks.
>
> Petr
>
> db> show mount
>
> 0xffffff0003939be0 /dev/ad0s2a on / (ufs)
> 0xffffff000393a000 devfs on /dev (devfs)
> 0xffffff00039398e8 linprocfs on /proc (linprocfs)
> 0xffffff0009b9d000 /dev/ad0s2d on /opt/sid/build (ufs)
>
> db> show mount 0xffffff0003939be0
>
> 0xffffff0003939be0 /dev/ad0s2a on / (ufs)
> mnt_flag = LOCAL, ROOTFS
> mnt_kern_flag = EXTENDED_SHARED, MPSAFE, LOOKUP_SHARED
> mnt_opt = rw, fstype, fspath, from, errmsg, noro
> mnt_stat = { version=537068824 type=7 flags=0x0000000000005000
> bsize=2048 iosize=16384 blocks=9233079 bfree=1720773 bavail=982127
> files=2402302 ffree=2211006 syncwrites=0 asyncwrites=0 syncreads=0
> asyncreads=0 namemax=255 owner=0 fsid=[1208030997, -638345611] }
> mnt_cred = { uid=0 ruid=0 }
> mnt_ref = 647
> mnt_gen = 1
> mnt_nvnodelistsize = 647
> mnt_writeopcount = 0
> mnt_noasync = 0
> mnt_maxsymlinklen = 120
> mnt_iosize_max = 131072
> mnt_hashseed = 3875541360
> mnt_secondary_writes = 0
> mnt_secondary_accwrites = 1674383
> mnt_gjprovider = NULL
>
> db> show mount 0xffffff000393a000
>
> 0xffffff000393a000 devfs on /dev (devfs)
> mnt_flag = MULTILABEL, LOCAL
> mnt_kern_flag = MPSAFE
> mnt_opt =
> mnt_stat = { version=537068824 type=2 flags=0x0000000004001000 bsize=0
> iosize=0 blocks=0 bfree=0 bavail=0 files=0 ffree=0 syncwrites=0
> asyncwrites=0 syncreads=0 asyncreads=0 namemax=255 owner=0 fsid=[33619712,
> 2] }
> mnt_cred = { uid=0 ruid=0 }
> mnt_ref = 36
> mnt_gen = 1
> mnt_nvnodelistsize = 36
> mnt_writeopcount = 0
> mnt_noasync = 0
> mnt_maxsymlinklen = 0
> mnt_iosize_max = 65536
> mnt_hashseed = 1577461787
> mnt_secondary_writes = 0
> mnt_secondary_accwrites = 0
> mnt_gjprovider = NULL
>
>
> db> show mount 0xffffff00039398e8
>
> 0xffffff00039398e8 linprocfs on /proc (linprocfs)
> mnt_flag = LOCAL
> mnt_kern_flag = MPSAFE
> mnt_opt = fstype, fspath, from, errmsg
> mnt_stat = { version=537068824 type=8 flags=0x0000000000001000
> bsize=4096 iosize=4096 blocks=1 bfree=0 bavail=0 files=1 ffree=0
> syncwrites=0 asyncwrites=0 syncreads=0 asyncreads=0 namemax=255 owner=0
> fsid=[134283009, 8] }
> mnt_cred = { uid=0 ruid=0 }
> mnt_ref = 393
> mnt_gen = 1
> mnt_nvnodelistsize = 393
> mnt_writeopcount = 0
> mnt_noasync = 0
> mnt_maxsymlinklen = 0
> mnt_iosize_max = 65536
> mnt_hashseed = 486483318
> mnt_secondary_writes = 0
> mnt_secondary_accwrites = 0
> mnt_gjprovider = NULL
>
>
> db> show mount 0xffffff0009b9d000
>
> 0xffffff0009b9d000 /dev/ad0s2d on /opt/sid/build (ufs)
> mnt_flag = LOCAL
> mnt_kern_flag = EXTENDED_SHARED, MPSAFE, LOOKUP_SHARED
> mnt_opt = rw, fstype, fspath, from, errmsg, noro
> mnt_stat = { version=537068824 type=7 flags=0x0000000000001000
> bsize=2048 iosize=16384 blocks=9683239 bfree=4555857 bavail=3781198
> files=2520062 ffree=1888868 syncwrites=0 asyncwrites=0 syncreads=0
> asyncreads=0 namemax=255 owner=0 fsid=[1208030997, -1215882613] }
> mnt_cred = { uid=0 ruid=0 }
> mnt_ref = 2297
> mnt_gen = 1
> mnt_nvnodelistsize = 2296
> mnt_writeopcount = 0
> mnt_noasync = 0
> mnt_maxsymlinklen = 120
> mnt_iosize_max = 131072
> mnt_hashseed = 1634023874
> mnt_secondary_writes = 1
> mnt_secondary_accwrites = 1332980
> mnt_gjprovider = NULL
>
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