[OpenAFS] Re: RHEL 7.5 beta / 3.10.0-830.el7.x86_66 kernel lock up

Sat, 3 Feb 2018 20:11:37 -0500

This is a cryptographically signed message in MIME format.

--------------ms060601090009020502050408
Content-Type: multipart/mixed;
 boundary="------------7071D8D7519B357F240449A9"
Content-Language: en-US

This is a multi-part message in MIME format.
--------------7071D8D7519B357F240449A9
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

On 2/2/2018 6:04 PM, Kodiak Firesmith wrote:
> I'm relatively new to handling OpenAFS.=C2=A0 Are these problems part o=
f a
> normal "kernel release; openafs update" cycle and perhaps I'm getting
> snagged just by being too early of an adopter?=C2=A0 I wanted to raise =
the
> alarm on this and see if anything else was needed from me as the
> reporter of the issue, but perhaps that's an overreaction to what is
> just part of a normal process I just haven't been tuned into in prior
> RHEL release cycles?

Kodiak,

On RHEL, DKMS is safe to use for kernel modules that restrict themselves
to using the restricted set of kernel interfaces (the RHEL KABI) that
Red Hat has designated will be supported across the lifespan of the RHEL
major version number.  OpenAFS is not such a kernel module.  As a result
it is vulnerable to breakage each and every time a new kernel is shipped.=

There are two types of failures that can occur:

 1. a change results in failure to build the OpenAFS kernel module
    for the new kernel

 2. a change results in the OpenAFS kernel module building and
    successfully loading but failing to operate correctly

It is the second of these possibilities that has taken place with the
release of the 3.10.0-830.el7 kernel shipped as part of the RHEL 7.5 beta=
=2E

Are you an early adopter of RHEL 7.5 beta?  Absolutely, its a beta
release and as such you should expect that there will be bugs and that
third party kernel modules that do not adhere to the KABI functionality
might have compatibility issues.

There was a compatibility issue with RHEL 7.4 kernel
(3.10.0_693.1.1.el7) as well that was only fixed in the OpenAFS 1.6
release series this past week as part of 1.6.22.2:

  http://www.openafs.org/dl/openafs/1.6.22.2/RELNOTES-1.6.22.2

Jeffrey Altman
AuriStor, Inc.

P.S. - Welcome to the community.

--------------7071D8D7519B357F240449A9
Content-Type: text/x-vcard; charset=utf-8;
 name="jaltman.vcf"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
 filename="jaltman.vcf"

begin:vcard
fn:Jeffrey Altman
n:Altman;Jeffrey
org:AuriStor, Inc.
adr:Suite 6B;;255 West 94Th Street;New York;New York;10025-6985;United St=
ates
email;internet:jaltman@auristor.com
title:Founder and CEO
tel;work:+1-212-769-9018
note;quoted-printable:LinkedIn: https://www.linkedin.com/in/jeffreyaltman=
=3D0D=3D0A=3D
	Skype: jeffrey.e.altman=3D0D=3D0A=3D
=09
url:https://www.auristor.com/
version:2.1
end:vcard

--------------7071D8D7519B357F240449A9--

--------------ms060601090009020502050408
Content-Type: application/pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"
Content-Description: S/MIME Cryptographic Signature

MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCC
DIIwggXpMIIE0aADAgECAhBAAV7gPRitcrlGsJTzkwjvMA0GCSqGSIb3DQEBCwUAMDoxCzAJ
BgNVBAYTAlVTMRIwEAYDVQQKEwlJZGVuVHJ1c3QxFzAVBgNVBAMTDlRydXN0SUQgQ0EgQTEy
MB4XDTE3MTAwMzAzMTczM1oXDTE4MTEwMzAzMTczM1owgYUxLTArBgNVBAsMJFZlcmlmaWVk
IEVtYWlsOiBqYWx0bWFuQGF1cmlzdG9yLmNvbTEjMCEGCSqGSIb3DQEJARYUamFsdG1hbkBh
dXJpc3Rvci5jb20xLzAtBgoJkiaJk/IsZAEBEx9BMDE0MjdFMDAwMDAxNUVFMDNEMTg3QTAw
MDA0QUE1MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqqJC89ZA1DSS7t/Ug8Dd
BQv5nBDumInWtFvHwVCORitVCvlkX4SfqKpERATq0eHOSc0zEz1PUjhAT8lgbNj8Bs92pL9t
DW/VHHpq11w06rCEmZJNxgErAIvMpRuAhGrzvBpQBLj8nDArHWw+5nRn/KnK7ZO81LEEj4TG
w0PEKGSa0aFA+JdRTJ6BZSDP2o/8AHx+Bw4JgW8VppAe4IuY/F+JoYtyQDL+fm1YMnFMtf1A
6IvlGXD7gMksPRbVIfD+QpHZbQvNXZAVVDaCWZuWQq46Vl4lSlkmW9yMlGddvFGl2zSMK7ny
f0kbWJLw9lZxXDegY0/ciJPACPsyBwuyLwIDAQABo4ICnTCCApkwDgYDVR0PAQH/BAQDAgWg
MIGEBggrBgEFBQcBAQR4MHYwMAYIKwYBBQUHMAGGJGh0dHA6Ly9jb21tZXJjaWFsLm9jc3Au
aWRlbnRydXN0LmNvbTBCBggrBgEFBQcwAoY2aHR0cDovL3ZhbGlkYXRpb24uaWRlbnRydXN0
LmNvbS9jZXJ0cy90cnVzdGlkY2FhMTIucDdjMB8GA1UdIwQYMBaAFKRz2u9pNYp1zKAZewgy
+GuJ5ELsMAkGA1UdEwQCMAAwggEsBgNVHSAEggEjMIIBHzCCARsGC2CGSAGG+S8ABgsBMIIB
CjBKBggrBgEFBQcCARY+aHR0cHM6Ly9zZWN1cmUuaWRlbnRydXN0LmNvbS9jZXJ0aWZpY2F0
ZXMvcG9saWN5L3RzL2luZGV4Lmh0bWwwgbsGCCsGAQUFBwICMIGuGoGrVGhpcyBUcnVzdElE
IENlcnRpZmljYXRlIGhhcyBiZWVuIGlzc3VlZCBpbiBhY2NvcmRhbmNlIHdpdGggCklkZW5U
cnVzdCdzIFRydXN0SUQgQ2VydGlmaWNhdGUgUG9saWN5IGZvdW5kIGF0IGh0dHBzOi8vc2Vj
dXJlLmlkZW50cnVzdC5jb20vY2VydGlmaWNhdGVzL3BvbGljeS90cy9pbmRleC5odG1sMEUG
A1UdHwQ+MDwwOqA4oDaGNGh0dHA6Ly92YWxpZGF0aW9uLmlkZW50cnVzdC5jb20vY3JsL3Ry
dXN0aWRjYWExMi5jcmwwHwYDVR0RBBgwFoEUamFsdG1hbkBhdXJpc3Rvci5jb20wHQYDVR0O
BBYEFNefZrPaqPUvaS6V6kAmHDwFhoDiMB0GA1UdJQQWMBQGCCsGAQUFBwMCBggrBgEFBQcD
BDANBgkqhkiG9w0BAQsFAAOCAQEAKlssrfOJ5+WwHyhFSeSsioN0qpg2QDX/uvodF38JbquO
1U0my0j3Cc/bwk48++bjzp0Fvk/Kkcmss5/6zzJMjr9rf12QCQfKkbO9nMm8Bg6IP3pYgk0W
/F1h3ZQF3OgBn3zZoOd3f1a6dF6z12MqKA/2g5GKrQFxkdzTGrNw6ISE9uY8ysvc3i2N2kas
HNi5Etk7StZ1jvFX5sQMIeNdlF+z+BU/AyT7NoBS4gCH+ggF+DG7fAYywvy42Lfu8p6kopKT
5JZpYce1cNjnOaDhzhgeR+oXxoDbekF27JinXHQSKjBxhujcZu5leAkpctFpZxnIKZJZUBiu
31Nm7xYaijCCBpEwggR5oAMCAQICEQD53lZ/yU0Md3D5YBtS2hU7MA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRIwEAYDVQQKEwlJZGVuVHJ1c3QxJzAlBgNVBAMTHklkZW5UcnVz
dCBDb21tZXJjaWFsIFJvb3QgQ0EgMTAeFw0xNTAyMTgyMjI1MTlaFw0yMzAyMTgyMjI1MTla
MDoxCzAJBgNVBAYTAlVTMRIwEAYDVQQKEwlJZGVuVHJ1c3QxFzAVBgNVBAMTDlRydXN0SUQg
Q0EgQTEyMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0ZFNPM8KJzSSrkvpmtQl
a3ksT+fq1s9c+Ea3YSC/umUkygSm9UkkOoaoNjKZoCx3wef1kwC4pQQV2XHk+AKR+7uMvnOC
Iw2cAVUP0/Kuy4X6miqaXGGVDTqwVjaFuFCRVVDTQoI2BTMpwFQi+O/TjD5+E0+TAZbkzsB7
krk4YUbA6hFyT0YboxRUq9M2QHDb+80w53b1UZVO1HS2Mfk9LnINeyzjxiXU/iENK07YvjBO
xbY/ftAYPbv/9cY3wrpqZYHoXZc6B9/8+aVCNA45FP3k+YuTDC+ZrmePQBLQJWnyS/QrZEdX
saieWUqkUMxPQKTExArCiP61YRYlOIMpKwIDAQABo4ICgDCCAnwwgYkGCCsGAQUFBwEBBH0w
ezAwBggrBgEFBQcwAYYkaHR0cDovL2NvbW1lcmNpYWwub2NzcC5pZGVudHJ1c3QuY29tMEcG
CCsGAQUFBzAChjtodHRwOi8vdmFsaWRhdGlvbi5pZGVudHJ1c3QuY29tL3Jvb3RzL2NvbW1l
cmNpYWxyb290Y2ExLnA3YzAfBgNVHSMEGDAWgBTtRBnA0/AGi+6ke75C5yZUyI42djAPBgNV
HRMBAf8EBTADAQH/MIIBIAYDVR0gBIIBFzCCARMwggEPBgRVHSAAMIIBBTCCAQEGCCsGAQUF
BwICMIH0MEUWPmh0dHBzOi8vc2VjdXJlLmlkZW50cnVzdC5jb20vY2VydGlmaWNhdGVzL3Bv
bGljeS90cy9pbmRleC5odG1sMAMCAQEagapUaGlzIFRydXN0SUQgQ2VydGlmaWNhdGUgaGFz
IGJlZW4gaXNzdWVkIGluIGFjY29yZGFuY2Ugd2l0aCBJZGVuVHJ1c3QncyBUcnVzdElEIENl
cnRpZmljYXRlIFBvbGljeSBmb3VuZCBhdCBodHRwczovL3NlY3VyZS5pZGVudHJ1c3QuY29t
L2NlcnRpZmljYXRlcy9wb2xpY3kvdHMvaW5kZXguaHRtbDBKBgNVHR8EQzBBMD+gPaA7hjlo
dHRwOi8vdmFsaWRhdGlvbi5pZGVudHJ1c3QuY29tL2NybC9jb21tZXJjaWFscm9vdGNhMS5j
cmwwHQYDVR0lBBYwFAYIKwYBBQUHAwIGCCsGAQUFBwMEMA4GA1UdDwEB/wQEAwIBhjAdBgNV
HQ4EFgQUpHPa72k1inXMoBl7CDL4a4nkQuwwDQYJKoZIhvcNAQELBQADggIBAA3hgq7S+/Tr
Yxl+D7ExI1Rdgq8fC9kiT7ofWlSaK/IMjgjoDfBbPGWvzdkmbSgYgXo8GxuAon9+HLIjNv68
BgUmbIjwj/SYaVz6chA25XZdjxzKk+hUkqCmfOn/twQJeRfxHg3I+0Sfwp5xs10YF0Robhrs
CRne6OUmh9mph0fE3b21k90OVnx9Hfr+YAV4ISrTA6045zQTKGzb370whliPLFo+hNL6XzEt
y5hfdFaWKtHIfpE994CLmTJI4SEbWq40d7TpAjCmKCPIVPq/+9GqggGvtakM5K3VXNc9VtKP
U9xYGCTDIYoeVBQ65JsdsdyM4PzDzAdINsv4vaF7yE03nh2jLV7XAkcqad9vS4EB4hKjFFsm
cwxa+ACUfkVWtBaWBqN4f/o1thsFJHEAu4Q6oRB6mYkzqrPigPazF2rgYw3lp0B1gSzCRj+j
RtErIVdMPeZ2p5Fdx7SNhBtabuhqmpJkFxwW9SBg6sHvy0HpzVvEiBpApFKG1ZHXMwzQl+pR
8P27wWDsblJU7Qgb8ZzGRK9l5GOFhxtN+oXZ4CCmunLMtaZ2vSai7du/VKrg64GGZNAKerEB
evjJVNFgeSnmUK9GB4kCZ7U5NWlU+2H87scntW4Q/0Y6vqQJcJeaMHg/dQnahTQ2p+hB1xJJ
K32GWIAucTFMSOKLbQHadIOiMYIDFDCCAxACAQEwTjA6MQswCQYDVQQGEwJVUzESMBAGA1UE
ChMJSWRlblRydXN0MRcwFQYDVQQDEw5UcnVzdElEIENBIEExMgIQQAFe4D0YrXK5RrCU85MI
7zANBglghkgBZQMEAgEFAKCCAZcwGAYJKoZIhvcNAQkDMQsGCSqGSIb3DQEHATAcBgkqhkiG
9w0BCQUxDxcNMTgwMjA0MDExMTM3WjAvBgkqhkiG9w0BCQQxIgQgqPC5LdFQhG4cPL7HoTmR
oLs5XRE18jKxzs3flBOcBEEwXQYJKwYBBAGCNxAEMVAwTjA6MQswCQYDVQQGEwJVUzESMBAG
A1UEChMJSWRlblRydXN0MRcwFQYDVQQDEw5UcnVzdElEIENBIEExMgIQQAFe4D0YrXK5RrCU
85MI7zBfBgsqhkiG9w0BCRACCzFQoE4wOjELMAkGA1UEBhMCVVMxEjAQBgNVBAoTCUlkZW5U
cnVzdDEXMBUGA1UEAxMOVHJ1c3RJRCBDQSBBMTICEEABXuA9GK1yuUawlPOTCO8wbAYJKoZI
hvcNAQkPMV8wXTALBglghkgBZQMEASowCwYJYIZIAWUDBAECMAoGCCqGSIb3DQMHMA4GCCqG
SIb3DQMCAgIAgDANBggqhkiG9w0DAgIBQDAHBgUrDgMCBzANBggqhkiG9w0DAgIBKDANBgkq
hkiG9w0BAQEFAASCAQB4ugk4F/g3XLG7vo+Gnv32I9t+2Ett04GHKIKJ7S/lVBv/7rHC+Rja
qSbZ2mAWdMrA9uhdDIMqFFwXrN3i3tbhvQRYvClvqSEa7UCjQSUe+QCpsJPnlJRzdMKBKyS1
bOsS5iROABPkG4SaNxdHPFbnjKWK96hv7Wm/L1noddj4V3TXokvTGOQrVnnGOw9O2TZfdMe5
uDD404DytAYe4BXgOrPMoeeaVR5DPDAdL9fiNFHqsBhIg+0jfsQCT1wC8/zYaC4hMbnwXj19
FOkGvK4peAqayJ/B5bndiLhWZLjt0Hmj/BXidnc/MT1YBBsucjuHei+ijANYI1b5j11hF+UX
AAAAAAAA
--------------ms060601090009020502050408--