Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-12 Thread Trond Myklebust
On Thu, 2007-12-13 at 00:42 +0100, Andi Kleen wrote: > > I appear to have misread d_find_alias(). It would seem that the only way > > to ensure that a mountpoint won't be found is to remove it altogether > > from the inode->i_dentry list. AFAICS that should be largely harmless > > since the nfs

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-12 Thread Andi Kleen
> I appear to have misread d_find_alias(). It would seem that the only way > to ensure that a mountpoint won't be found is to remove it altogether > from the inode->i_dentry list. AFAICS that should be largely harmless > since the nfs sb->s_root is never visible to users, and is never part of > a

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-12 Thread Andi Kleen
I appear to have misread d_find_alias(). It would seem that the only way to ensure that a mountpoint won't be found is to remove it altogether from the inode-i_dentry list. AFAICS that should be largely harmless since the nfs sb-s_root is never visible to users, and is never part of a dentry

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-12 Thread Trond Myklebust
On Thu, 2007-12-13 at 00:42 +0100, Andi Kleen wrote: I appear to have misread d_find_alias(). It would seem that the only way to ensure that a mountpoint won't be found is to remove it altogether from the inode-i_dentry list. AFAICS that should be largely harmless since the nfs sb-s_root

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-11 Thread Trond Myklebust
On Mon, 2007-12-10 at 19:57 +0100, Andi Kleen wrote: > > Hi Andi, > > > > Does the attached patch fix the Oops? > > Nope, got that a few hours after boot again: > > -Andi Hi Andi, I appear to have misread d_find_alias(). It would seem that the only way to ensure that a mountpoint won't be

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-11 Thread Trond Myklebust
On Mon, 2007-12-10 at 19:57 +0100, Andi Kleen wrote: Hi Andi, Does the attached patch fix the Oops? Nope, got that a few hours after boot again: -Andi Hi Andi, I appear to have misread d_find_alias(). It would seem that the only way to ensure that a mountpoint won't be found is to

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-10 Thread Andi Kleen
> Hi Andi, > > Does the attached patch fix the Oops? Nope, got that a few hours after boot again: -Andi EXT3 FS on sda1, internal journal EXT3-fs: mounted filesystem with ordered data mode. [ cut here ] kernel BUG at fs/dcache.c:595! invalid opcode: [1] SMP CPU 0

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-10 Thread Andi Kleen
Hi Andi, Does the attached patch fix the Oops? Nope, got that a few hours after boot again: -Andi EXT3 FS on sda1, internal journal EXT3-fs: mounted filesystem with ordered data mode. [ cut here ] kernel BUG at fs/dcache.c:595! invalid opcode: [1] SMP CPU 0

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-09 Thread Trond Myklebust
On Sat, 2007-12-08 at 14:22 +0100, Andi Kleen wrote: > [39943.212533] [ cut here ] > [39943.221973] kernel BUG at fs/dcache.c:595! > [39943.230369] invalid opcode: [1] SMP > [39943.238638] last sysfs file: > /devices/system/cpu/cpu7/cache/index2/shared_cpu_map >

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-09 Thread Trond Myklebust
On Sat, 2007-12-08 at 14:22 +0100, Andi Kleen wrote: [39943.212533] [ cut here ] [39943.221973] kernel BUG at fs/dcache.c:595! [39943.230369] invalid opcode: [1] SMP [39943.238638] last sysfs file: /devices/system/cpu/cpu7/cache/index2/shared_cpu_map

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-08 Thread Andi Kleen
On Monday 03 December 2007 16:23:58 Andi Kleen wrote: > > FYI > > Just saw this on a test system of mine running 2.4.24rc3 (+ some suse patches, > but they're not changing anything near this AFAIK) Got it again after rebooting the system. Can this be made a 2.6.24 blocker or something?

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-08 Thread Andi Kleen
On Monday 03 December 2007 16:23:58 Andi Kleen wrote: FYI Just saw this on a test system of mine running 2.4.24rc3 (+ some suse patches, but they're not changing anything near this AFAIK) Got it again after rebooting the system. Can this be made a 2.6.24 blocker or something? Admittedly

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-06 Thread Andrew Morton
On Mon, 3 Dec 2007 16:23:58 +0100 Andi Kleen <[EMAIL PROTECTED]> wrote: > > FYI > > Just saw this on a test system of mine running 2.4.24rc3 (+ some suse patches, > but they're not changing anything near this AFAIK) > > -Andi > > [101109.104881] [ cut here ] >

Re: BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-06 Thread Andrew Morton
On Mon, 3 Dec 2007 16:23:58 +0100 Andi Kleen [EMAIL PROTECTED] wrote: FYI Just saw this on a test system of mine running 2.4.24rc3 (+ some suse patches, but they're not changing anything near this AFAIK) -Andi [101109.104881] [ cut here ] [101109.114487]

BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-03 Thread Andi Kleen
FYI Just saw this on a test system of mine running 2.4.24rc3 (+ some suse patches, but they're not changing anything near this AFAIK) -Andi [101109.104881] [ cut here ] [101109.114487] kernel BUG at fs/dcache.c:595! [101109.123053] invalid opcode: [1] SMP

BUG fs/dcache.c:595 in 2.4.24rc3-git3 during NFS umount

2007-12-03 Thread Andi Kleen
FYI Just saw this on a test system of mine running 2.4.24rc3 (+ some suse patches, but they're not changing anything near this AFAIK) -Andi [101109.104881] [ cut here ] [101109.114487] kernel BUG at fs/dcache.c:595! [101109.123053] invalid opcode: [1] SMP