hi. I'm trying to use nilfs2 on Scientific Linux 6.1 with kernel 2.6.32-131.17.1.el6.x86_64. currently, there's no official package for SL6.1 (and RHEL6), so i tried to build rpm package using CentOS 5's srpm. i installed nilfs-kmod-2.0.22-4.src.rpm, extract nilfs-2.0.22.tar.bz2 and tried to make, but fails like: $ pwd /tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs $ make -C /usr/src/kernels/2.6.32-131.17.1.el6.x86_64 M=`pwd` make: Entering directory `/usr/src/kernels/2.6.32-131.17.1.el6.x86_64' LD /tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs/built-in.o CC [M] /tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs/inode.o In file included from /tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs/inode.c:28: /tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs/nilfs.h: In function ‘nilfs_init_acl’: /tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs/nilfs.h:234: error: dereferencing pointer to incomplete type make[1]: *** [/tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs/inode.o] Error 1 make: *** [_module_/tmp/rpmbuild/SOURCES/nilfs-2.0.22/fs] Error 2 make: Leaving directory `/usr/src/kernels/2.6.32-131.17.1.el6.x86_64' I installed SL6.1's kernel Source RPM(srpm) , try to make from the sources in the srpm. i installed kernel-2.6.32-131.17.1.el6.src.rpm using yumdownloader. but fails like: $ pwd /tmp/sl6-srpm-nilfs2 $ make -C /usr/src/kernels/2.6.32-131.17.1.el6.x86_64 M=`pwd` make: Entering directory `/usr/src/kernels/2.6.32-131.17.1.el6.x86_64' LD /tmp/sl6-srpm-nilfs2/built-in.o CC [M] /tmp/sl6-srpm-nilfs2/inode.o CC [M] /tmp/sl6-srpm-nilfs2/file.o CC [M] /tmp/sl6-srpm-nilfs2/dir.o CC [M] /tmp/sl6-srpm-nilfs2/super.o CC [M] /tmp/sl6-srpm-nilfs2/namei.o CC [M] /tmp/sl6-srpm-nilfs2/page.o CC [M] /tmp/sl6-srpm-nilfs2/mdt.o CC [M] /tmp/sl6-srpm-nilfs2/btnode.o CC [M] /tmp/sl6-srpm-nilfs2/bmap.o CC [M] /tmp/sl6-srpm-nilfs2/btree.o CC [M] /tmp/sl6-srpm-nilfs2/direct.o CC [M] /tmp/sl6-srpm-nilfs2/dat.o CC [M] /tmp/sl6-srpm-nilfs2/recovery.o CC [M] /tmp/sl6-srpm-nilfs2/the_nilfs.o CC [M] /tmp/sl6-srpm-nilfs2/segbuf.o /tmp/sl6-srpm-nilfs2/segbuf.c: In function ‘nilfs_segbuf_write’: /tmp/sl6-srpm-nilfs2/segbuf.c:396: error: ‘REQ_UNPLUG’ undeclared (first use in this function) /tmp/sl6-srpm-nilfs2/segbuf.c:396: error: (Each undeclared identifier is reported only once /tmp/sl6-srpm-nilfs2/segbuf.c:396: error: for each function it appears in.) make[1]: *** [/tmp/sl6-srpm-nilfs2/segbuf.o] Error 1 make: *** [_module_/tmp/sl6-srpm-nilfs2] Error 2 make: Leaving directory `/usr/src/kernels/2.6.32-131.17.1.el6.x86_64' then, i also tried with original kernel code from kernel.org, linux-2.6.32.27. in this case, make is done successfully and i got nilfs2.ko. copy the .ko, modprobe it, and make nilfs2 partition following the guide on the web. after mounting the partition, dmesg reports: segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds ------------[ cut here ]------------ WARNING: at block/blk-core.c:1244 __make_request+0x525/0x5a0() (Not tainted) block: BARRIER is deprecated, use FLUSH/FUA instead Modules linked in: nilfs2(U) autofs4 nfs lockd fscache nfs_acl auth_rpcgss sunrpc xenfs ipv6 ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables dm_mirror dm_region_hash dm_log microcode xen_netfront ext4 mbcache jbd2 xen_blkfront dm_mod [last unloaded: scsi_wait_scan] Pid: 1649, comm: mount.nilfs2 Not tainted 2.6.32-131.17.1.el6.x86_64 #1 Call Trace: [<ffffffff810670f7>] ? warn_slowpath_common+0x87/0xc0 [<ffffffff81007c4f>] ? xen_restore_fl_direct_end+0x0/0x1 [<ffffffff810671e6>] ? warn_slowpath_fmt+0x46/0x50 [<ffffffff8124ad55>] ? __make_request+0x525/0x5a0 [<ffffffff81007c62>] ? check_events+0x12/0x20 [<ffffffff8124920e>] ? generic_make_request+0x21e/0x5b0 [<ffffffff8124962f>] ? submit_bio+0x8f/0x120 [<ffffffff811a2ab6>] ? submit_bh+0xf6/0x150 [<ffffffff811a4df3>] ? __sync_dirty_buffer+0x53/0xf0 [<ffffffff811a4ea3>] ? sync_dirty_buffer+0x13/0x20 [<ffffffffa02367d5>] ? nilfs_commit_super+0x175/0x2e0 [nilfs2] [<ffffffffa0236b6e>] ? nilfs_setup_super+0x7e/0xc0 [nilfs2] [<ffffffffa0237518>] ? nilfs_get_sb+0x578/0x730 [nilfs2] [<ffffffff8115473a>] ? alloc_pages_current+0xaa/0x110 [<ffffffff8117569b>] ? vfs_kern_mount+0x7b/0x1b0 [<ffffffff81175842>] ? do_kern_mount+0x52/0x130 [<ffffffff81193317>] ? do_mount+0x2e7/0x870 [<ffffffff81190df2>] ? copy_mount_options+0xf2/0x1a0 [<ffffffff81193930>] ? sys_mount+0x90/0xe0 [<ffffffff8100b172>] ? system_call_fastpath+0x16/0x1b ---[ end trace 75b36a1725360299 ]--- NILFS warning (device xvdb1): nilfs_sync_super: barrier-based sync failed. disabling barriers file operations are working fine. i can write and read files. but i tried to unmount the partition, kernel panics. BUG: unable to handle kernel NULL pointer dereference at 0000000000000229 IP: [<ffffffff8112533e>] __remove_mapping+0x8e/0x160 (snip) Call Trace: remove_mapping, invalidate_inode_page, invalidate_mapping_pages, __wait_on_buffer, __sync_dirty_buffer, nilfs_mdt_clear, nilfs_detach_checkpoint, nilfs_put_super, generic_shutdown_super, kill_block_super, ... --- Kernel panic - not syncing: Fatal exception Pid: 1635, comm: umount.nilfs2 Tainted: G D W how should i do to use nilfs on SL6 environment? or do you have any plan to release CentOS6 package of nilfs? my environment: Scientific Linux 6.1 x64 on XenServer 5.6 SP2. Shingo TAKADA -- takada@xxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html