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Message #38752
[Bug 1868654] Re: reuseport_bpf in net from ubuntu_kernel_selftests failed on X-4.15 PowerPC
** Also affects: linux-hwe (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-hwe (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: linux-signed-hwe (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux-hwe (Ubuntu)
Status: New => Invalid
** Changed in: linux-hwe (Ubuntu Xenial)
Status: New => Confirmed
** Changed in: linux-signed-hwe (Ubuntu)
Status: New => Invalid
** Changed in: linux-signed-hwe (Ubuntu Xenial)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1868654
Title:
reuseport_bpf in net from ubuntu_kernel_selftests failed on X-4.15
PowerPC
Status in ubuntu-kernel-tests:
New
Status in linux-hwe package in Ubuntu:
Invalid
Status in linux-signed-hwe package in Ubuntu:
Invalid
Status in linux-hwe source package in Xenial:
Confirmed
Status in linux-signed-hwe source package in Xenial:
Invalid
Bug description:
Issue found on P8 node modoc & witchita, with kernel in -updates
4.15.0-91
Test failed with:
./reuseport_bpf: ebpf error. log:
0: (bf) r6 = r1
1: (20) r0 = *(u32 *)skb[0]
2: (97) r0 %= 10
3: (95) exit
processed 4 insns, stack depth 0
Full log:
$ sudo ./reuseport_bpf
---- IPv4 UDP ----
Testing EBPF mod 10...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 5: 15
Socket 6: 16
Socket 7: 17
Socket 8: 18
Socket 9: 19
Reprograming, testing mod 5...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 0: 5
Socket 1: 6
Socket 2: 7
Socket 3: 8
Socket 4: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 0: 15
Socket 1: 16
Socket 2: 17
Socket 3: 18
Socket 4: 19
Testing EBPF mod 20...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 10: 10
Socket 11: 11
Socket 12: 12
Socket 13: 13
Socket 14: 14
Socket 15: 15
Socket 16: 16
Socket 17: 17
Socket 18: 18
Socket 19: 19
Socket 0: 20
Socket 1: 21
Socket 2: 22
Socket 3: 23
Socket 4: 24
Socket 5: 25
Socket 6: 26
Socket 7: 27
Socket 8: 28
Socket 9: 29
Socket 10: 30
Socket 11: 31
Socket 12: 32
Socket 13: 33
Socket 14: 34
Socket 15: 35
Socket 16: 36
Socket 17: 37
Socket 18: 38
Socket 19: 39
Reprograming, testing mod 10...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 5: 15
Socket 6: 16
Socket 7: 17
Socket 8: 18
Socket 9: 19
Socket 0: 20
Socket 1: 21
Socket 2: 22
Socket 3: 23
Socket 4: 24
Socket 5: 25
Socket 6: 26
Socket 7: 27
Socket 8: 28
Socket 9: 29
Socket 0: 30
Socket 1: 31
Socket 2: 32
Socket 3: 33
Socket 4: 34
Socket 5: 35
Socket 6: 36
Socket 7: 37
Socket 8: 38
Socket 9: 39
Testing CBPF mod 10...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 5: 15
Socket 6: 16
Socket 7: 17
Socket 8: 18
Socket 9: 19
Reprograming, testing mod 5...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 0: 5
Socket 1: 6
Socket 2: 7
Socket 3: 8
Socket 4: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 0: 15
Socket 1: 16
Socket 2: 17
Socket 3: 18
Socket 4: 19
Testing CBPF mod 20...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 10: 10
Socket 11: 11
Socket 12: 12
Socket 13: 13
Socket 14: 14
Socket 15: 15
Socket 16: 16
Socket 17: 17
Socket 18: 18
Socket 19: 19
Socket 0: 20
Socket 1: 21
Socket 2: 22
Socket 3: 23
Socket 4: 24
Socket 5: 25
Socket 6: 26
Socket 7: 27
Socket 8: 28
Socket 9: 29
Socket 10: 30
Socket 11: 31
Socket 12: 32
Socket 13: 33
Socket 14: 34
Socket 15: 35
Socket 16: 36
Socket 17: 37
Socket 18: 38
Socket 19: 39
Reprograming, testing mod 10...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 5: 15
Socket 6: 16
Socket 7: 17
Socket 8: 18
Socket 9: 19
Socket 0: 20
Socket 1: 21
Socket 2: 22
Socket 3: 23
Socket 4: 24
Socket 5: 25
Socket 6: 26
Socket 7: 27
Socket 8: 28
Socket 9: 29
Socket 0: 30
Socket 1: 31
Socket 2: 32
Socket 3: 33
Socket 4: 34
Socket 5: 35
Socket 6: 36
Socket 7: 37
Socket 8: 38
Socket 9: 39
Testing too many filters...
Testing filters on non-SO_REUSEPORT socket...
---- IPv6 UDP ----
Testing EBPF mod 10...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 5: 15
Socket 6: 16
Socket 7: 17
Socket 8: 18
Socket 9: 19
Reprograming, testing mod 5...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 0: 5
Socket 1: 6
Socket 2: 7
Socket 3: 8
Socket 4: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 0: 15
Socket 1: 16
Socket 2: 17
Socket 3: 18
Socket 4: 19
Testing EBPF mod 20...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 10: 10
Socket 11: 11
Socket 12: 12
Socket 13: 13
Socket 14: 14
Socket 15: 15
Socket 16: 16
Socket 17: 17
Socket 18: 18
Socket 19: 19
Socket 0: 20
Socket 1: 21
Socket 2: 22
Socket 3: 23
Socket 4: 24
Socket 5: 25
Socket 6: 26
Socket 7: 27
Socket 8: 28
Socket 9: 29
Socket 10: 30
Socket 11: 31
Socket 12: 32
Socket 13: 33
Socket 14: 34
Socket 15: 35
Socket 16: 36
Socket 17: 37
Socket 18: 38
Socket 19: 39
Reprograming, testing mod 10...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 5: 15
Socket 6: 16
Socket 7: 17
Socket 8: 18
Socket 9: 19
Socket 0: 20
Socket 1: 21
Socket 2: 22
Socket 3: 23
Socket 4: 24
Socket 5: 25
Socket 6: 26
Socket 7: 27
Socket 8: 28
Socket 9: 29
Socket 0: 30
Socket 1: 31
Socket 2: 32
Socket 3: 33
Socket 4: 34
Socket 5: 35
Socket 6: 36
Socket 7: 37
Socket 8: 38
Socket 9: 39
Testing CBPF mod 10...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 5: 15
Socket 6: 16
Socket 7: 17
Socket 8: 18
Socket 9: 19
Reprograming, testing mod 5...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 0: 5
Socket 1: 6
Socket 2: 7
Socket 3: 8
Socket 4: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 0: 15
Socket 1: 16
Socket 2: 17
Socket 3: 18
Socket 4: 19
Testing CBPF mod 20...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 10: 10
Socket 11: 11
Socket 12: 12
Socket 13: 13
Socket 14: 14
Socket 15: 15
Socket 16: 16
Socket 17: 17
Socket 18: 18
Socket 19: 19
Socket 0: 20
Socket 1: 21
Socket 2: 22
Socket 3: 23
Socket 4: 24
Socket 5: 25
Socket 6: 26
Socket 7: 27
Socket 8: 28
Socket 9: 29
Socket 10: 30
Socket 11: 31
Socket 12: 32
Socket 13: 33
Socket 14: 34
Socket 15: 35
Socket 16: 36
Socket 17: 37
Socket 18: 38
Socket 19: 39
Reprograming, testing mod 10...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 5: 15
Socket 6: 16
Socket 7: 17
Socket 8: 18
Socket 9: 19
Socket 0: 20
Socket 1: 21
Socket 2: 22
Socket 3: 23
Socket 4: 24
Socket 5: 25
Socket 6: 26
Socket 7: 27
Socket 8: 28
Socket 9: 29
Socket 0: 30
Socket 1: 31
Socket 2: 32
Socket 3: 33
Socket 4: 34
Socket 5: 35
Socket 6: 36
Socket 7: 37
Socket 8: 38
Socket 9: 39
Testing too many filters...
Testing filters on non-SO_REUSEPORT socket...
---- IPv6 UDP w/ mapped IPv4 ----
Testing EBPF mod 20...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 10: 10
Socket 11: 11
Socket 12: 12
Socket 13: 13
Socket 14: 14
Socket 15: 15
Socket 16: 16
Socket 17: 17
Socket 18: 18
Socket 19: 19
Socket 0: 20
Socket 1: 21
Socket 2: 22
Socket 3: 23
Socket 4: 24
Socket 5: 25
Socket 6: 26
Socket 7: 27
Socket 8: 28
Socket 9: 29
Socket 10: 30
Socket 11: 31
Socket 12: 32
Socket 13: 33
Socket 14: 34
Socket 15: 35
Socket 16: 36
Socket 17: 37
Socket 18: 38
Socket 19: 39
Reprograming, testing mod 10...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 5: 15
Socket 6: 16
Socket 7: 17
Socket 8: 18
Socket 9: 19
Socket 0: 20
Socket 1: 21
Socket 2: 22
Socket 3: 23
Socket 4: 24
Socket 5: 25
Socket 6: 26
Socket 7: 27
Socket 8: 28
Socket 9: 29
Socket 0: 30
Socket 1: 31
Socket 2: 32
Socket 3: 33
Socket 4: 34
Socket 5: 35
Socket 6: 36
Socket 7: 37
Socket 8: 38
Socket 9: 39
Testing EBPF mod 10...
Socket 0: 0
Socket 1: 1
Socket 2: 2
Socket 3: 3
Socket 4: 4
Socket 5: 5
Socket 6: 6
Socket 7: 7
Socket 8: 8
Socket 9: 9
Socket 0: 10
Socket 1: 11
Socket 2: 12
Socket 3: 13
Socket 4: 14
Socket 5: 15
Socket 6: 16
Socket 7: 17
Socket 8: 18
Socket 9: 19
Reprograming, testing mod 5...
./reuseport_bpf: ebpf error. log:
0: (bf) r6 = r1
1: (20) r0 = *(u32 *)skb[0]
2: (97) r0 %= 10
3: (95) exit
processed 4 insns, stack depth 0
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.15.0-91-generic 4.15.0-91.92~16.04.1
ProcVersionSignature: Ubuntu 4.15.0-91.92~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-91-generic ppc64le
ApportVersion: 2.20.1-0ubuntu2.21
Architecture: ppc64el
Date: Tue Mar 24 04:11:47 2020
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcLoadAvg: 129.12 212.91 101.02 1/1431 62563
ProcLocks:
1: POSIX ADVISORY WRITE 3440 00:17:754 0 EOF
2: POSIX ADVISORY WRITE 1877 00:17:489 0 EOF
3: POSIX ADVISORY WRITE 3535 00:17:775 0 EOF
4: POSIX ADVISORY WRITE 3646 00:17:768 0 EOF
5: FLOCK ADVISORY WRITE 3527 00:17:766 0 EOF
ProcSwaps:
Filename Type Size Used Priority
/swap.img file 8388544 0 -2
ProcVersion: Linux version 4.15.0-91-generic (buildd@bos02-ppc64el-017) (gcc version 5.4.0 20160609 (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.12)) #92~16.04.1-Ubuntu SMP Fri Feb 28 14:53:08 UTC 2020
SourcePackage: linux-signed-hwe
UpgradeStatus: No upgrade log present (probably fresh install)
cpu_cores: Number of cores present = 20
cpu_coreson: Number of cores online = 20
cpu_dscr: DSCR is 0
cpu_freq:
min: 3.694 GHz (cpu 158)
max: 3.695 GHz (cpu 31)
avg: 3.694 GHz
cpu_runmode:
Could not retrieve current diagnostics mode,
No kernel interface to firmware
cpu_smt: SMT=8
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