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Date: Wed, 16 Dec 2020 18:20:36 +0300 From: Kirill Tkhai <ktkhai@...tuozzo.com> To: Mike Galbraith <efault@....de>, LKML <linux-kernel@...r.kernel.org>, egorenar@...ux.ibm.com, Christian Brauner <christian.brauner@...ntu.com> Subject: Re: regression: 9a56493f6942 "uts: Use generic ns_common::count" broke makedumpfile 1.6.7 On 16.12.2020 17:49, Mike Galbraith wrote: > On Wed, 2020-12-16 at 15:31 +0100, Mike Galbraith wrote: >> On Wed, 2020-12-16 at 17:23 +0300, Kirill Tkhai wrote: >>> >>> Does this regression only cause that one error message "check_release: Can't get the kernel version" >>> is printed instead of another: "The kernel version is not supported."? >> >> The thing does indeed mutter about the kernel version, with or without >> 9a56493f6942 reverted, but it work despite the muttering with >> 9a56493f6942 reverted. > > makedumpfile 1.6.7 source only claims to work up to linux-5.4.8, but > actually does work all the way up until 9a56493f6942. > > If the answer here is that v1,6,7 has reached EOL, that's fine, I'll > just carry a revert until I can cobble together an updated package. I think, since there is no a makedumpfile version working, this is a regression, and it should be workarounded it in kernel. We may consider a patch like the below till updated makedumpfile is not published: diff --git a/include/linux/utsname.h b/include/linux/utsname.h index 2b1737c9b244..d6bcad448f52 100644 --- a/include/linux/utsname.h +++ b/include/linux/utsname.h @@ -8,6 +8,7 @@ #include <linux/ns_common.h> #include <linux/err.h> #include <uapi/linux/utsname.h> +#include <linux/kref.h> enum uts_proc { UTS_PROC_OSTYPE, @@ -21,6 +22,7 @@ struct user_namespace; extern struct user_namespace init_user_ns; struct uts_namespace { + struct kref unused; struct new_utsname name; struct user_namespace *user_ns; struct ucounts *ucounts;
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