Messages in this thread | | | Date | Sun, 14 May 2006 15:47:51 +0400 | From | Evgeniy Dushistov <> | Subject | Re: [PATCH 1/3] ufs: ufs_trunc_indirect: infinite cycle |
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On Sun, May 14, 2006 at 02:47:52AM -0700, Andrew Morton wrote: > Evgeniy Dushistov <dushistov@mail.ru> wrote: > > > > The situation the same: in ufs_trunc_(not direct), > > we read block, > > check if count of links to it is equal to one, > > if so we finish cycle, if not continue. > > Because of "count of links" always >=2 this operation cause > > infinite cycle and hang up the kernel. > > okay, but do we know what that code which you removed was actually intended > to do? > I suppose it wait untill all range of buffers, which used by "inode" will be freed. "vmtruncate" should care about this.
> Do you know whether 2.4 kernels exhibit the same bug? I suppose 2.4 doesn't affected, because of "sb_get_hash_table" (analog of sb_find_get_block in 2.6) use "get_bh" only once, so b_count equal to 1 if nobody used it.
-- /Evgeniy
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