[possible-spam:3.5] Re: [Linux-cachefs] vanilla-sources CacheFS & UnionFS

[Andreas Bandner]

On Tuesday 28 November 2006 16:01, Srinivasa Ds wrote:
> Andreas Bandner wrote:
> > hi,
> >
> > I'm working on a Gentoo diskless system
> > CacheFS & UninonFS should be used to spread the system to the clients
> >
> > CacheFS works fine under Gentoo with the mm-sources.
> >
> > When trying to patch vanilla-sources (2.6.19-rc6) with
> > http://people.redhat.com/~dhowells/fscache/patches/nfs+fscache-19.tar.bz2
> > then compilation is fine, but i can't bind the cache.
> >
> > Error is Unable to open /proc/fs/cachefiles: errno 2 (No such file or
> > directory)
>
> Are sure that sure that, CONFIG_FSCACHE is enabled in your config file?

hongkong linux-2.6.19-rc6 # cat .config | grep FSCACHE 
CONFIG_FSCACHE=y
CONFIG_NFS_FSCACHE=y

>
> Thanks
> Srinivasa DS
>
> > some ideas ?
> > strace follows
> >
> > Is someone working on the same ?
> > I just created a GentooWiki for CacheFS
> > http://gentoo-wiki.com/HOWTO_CacheFS
> >
> > thanks
> >
> > Andy
> >
> > strace cachefilesd -s
> > execve("/sbin/cachefilesd", ["cachefilesd", "-s"], [/* 45 vars */]) = 0
> > brk(0)                                  = 0x8056000
> > access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or
> > directory)
> > open("/etc/ld.so.cache", O_RDONLY)      = 3
> > fstat64(3, {st_mode=S_IFREG|0644, st_size=73935, ...}) = 0
> > mmap2(NULL, 73935, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f2e000
> > close(3)                                = 0
> > open("/lib/libc.so.6", O_RDONLY)        = 3
> > read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300Y\1"..., 512)
> > = 512
> > fstat64(3, {st_mode=S_IFREG|0755, st_size=1197180, ...}) = 0
> > mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
> > = 0xb7f2d000
> > mmap2(NULL, 1168764, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
> > 0) = 0xb7e0f000
> > mmap2(0xb7f26000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|
> > MAP_DENYWRITE, 3, 0x116) = 0xb7f26000
> > mmap2(0xb7f2a000, 9596, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|
> > MAP_ANONYMOUS, -1, 0) = 0xb7f2a000
> > close(3)                                = 0
> > mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
> > = 0xb7e0e000
> > set_thread_area({entry_number:-1 -> 6, base_addr:0xb7e0e6b0,
> > limit:1048575, seg_32bit:1, contents:0, read_exec_only:0,
> > limit_in_pages:1,
> > seg_not_present:0, useable:1}) = 0
> > mprotect(0xb7f26000, 8192, PROT_READ)   = 0
> > mprotect(0xb7f5c000, 4096, PROT_READ)   = 0
> > munmap(0xb7f2e000, 73935)               = 0
> > getrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) = 0
> > setresuid32(0, 0, 0)                    = 0
> > setresgid32(0, 0, 0)                    = 0
> > sync()                                  = 0
> > open("/proc/fs/cachefiles", O_RDWR)     = -1 ENOENT (No such file or
> > directory)
> > write(2, "Unable to open /proc/fs/cachefil"..., 72Unable to
> > open /proc/fs/cachefiles: errno 2 (No such file or directory)
> > ) = 72
> > exit_group(1)                           = ?
> > Process 4284 detached
> >
> > --
> > Linux-cachefs mailing list
> > Linux-cachefs at redhat.com
> > https://www.redhat.com/mailman/listinfo/linux-cachefs
>
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