mirror_zfs

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loli10K 7e2da7786e KMC_KVMEM disrupts kv_alloc() memory alignment expectations

On kernels with KASAN enabled the following failure can be observed as
soon as the zfs module is loaded:

  VERIFY(IS_P2ALIGNED(ptr, PAGE_SIZE)) failed
  PANIC at spl-kmem-cache.c:228:kv_alloc()

The problem is kmalloc() has never guaranteed aligned allocations; this
requirement resulted in zfsonlinux/spl@8b45dda which removed all
kmalloc() usage in kv_alloc().

Until a GFP_ALIGNED flag (or equivalent functionality) is provided by
the kernel this commit partially reverts 66955885 and 6d948c35 to
prevent k(v)malloc() allocations in kv_alloc().

Reviewed-by: Kjeld Schouten <kjeld@schouten-lebbing.nl>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #9813

2020-01-14 09:09:59 -08:00

avl

Wrap Linux module macros

2019-11-01 10:41:03 -07:00

icp

Static symbols exported by ICP

2020-01-02 18:08:45 -08:00

lua

cppcheck: (error) Address of local auto-variable assigned

2019-12-18 17:25:42 -08:00

nvpair

cppcheck: (warning) Possible null pointer dereference: nvh