On Wed, 2015-07-29 at 16:54 +0530, Ritesh Raj Sarraf wrote: > On Sun, 2015-07-26 at 23:01 +0100, Ben Hutchings wrote: > > > The kernel has a register corruption bug on sparc that is causing > > corruption > > > and failed builds. Enabling SLUB instead of SLAB in the kernel is > > an > > > effective workaround. > > [...] > > > > For this test case, but probably not in general. I think it's a bad > > idea to make this change and leave the root cause unfixed. I suggest > > someone reminds David Miller that this is still open, as I don't see > > any update to that thread in the last month. > > This is the right question for you Ben. > > The upstream Kconfig says that SLUB is the default slab allocator of > choice. Where as in Debian, we choose SLAB as the default.
SLUB developers *wanted* it to be the default.
> My understanding is that the upstream kernel defaults are very
> orthodox, during selection ?
As no default is explicitly specified for this choice, SLAB - being the
first option - is the actual default.
Looking at the in-tree defconfig files, there are:
230 CONFIG_SLAB=y
12 CONFIG_SLOB=y
1 CONFIG_SLUB=y
Ben.
--
Ben Hutchings
If at first you don't succeed, you're doing about average.
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