Thread (3 messages) 3 messages, 3 authors, 2021-11-01

Re: [PATCH bpf-next] selftests/bpf: fix strobemeta selftest regression

From: patchwork-bot+netdevbpf@kernel.org
Date: 2021-11-01 16:20:11

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Daniel Borkmann [off-list ref]:

On Fri, 29 Oct 2021 11:29:07 -0700 you wrote:
After most recent nightly Clang update strobemeta selftests started
failing with the following error (relevant portion of assembly included):

  1624: (85) call bpf_probe_read_user_str#114
  1625: (bf) r1 = r0
  1626: (18) r2 = 0xfffffffe
  1628: (5f) r1 &= r2
  1629: (55) if r1 != 0x0 goto pc+7
  1630: (07) r9 += 104
  1631: (6b) *(u16 *)(r9 +0) = r0
  1632: (67) r0 <<= 32
  1633: (77) r0 >>= 32
  1634: (79) r1 = *(u64 *)(r10 -456)
  1635: (0f) r1 += r0
  1636: (7b) *(u64 *)(r10 -456) = r1
  1637: (79) r1 = *(u64 *)(r10 -368)
  1638: (c5) if r1 s< 0x1 goto pc+778
  1639: (bf) r6 = r8
  1640: (0f) r6 += r7
  1641: (b4) w1 = 0
  1642: (6b) *(u16 *)(r6 +108) = r1
  1643: (79) r3 = *(u64 *)(r10 -352)
  1644: (79) r9 = *(u64 *)(r10 -456)
  1645: (bf) r1 = r9
  1646: (b4) w2 = 1
  1647: (85) call bpf_probe_read_user_str#114

[...]
Here is the summary with links:
  - [bpf-next] selftests/bpf: fix strobemeta selftest regression
    https://git.kernel.org/bpf/bpf-next/c/0133c20480b1

You are awesome, thank you!
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