linux-kernel - Re: [ANNOUNCE] v5.9.1-rt18

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Date:   Mon, 26 Oct 2020 23:53:20 -0700
From:   Fernando Lopez-Lezcano <nando@...ma.Stanford.EDU>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     nando@...ma.Stanford.EDU, LKML <linux-kernel@...r.kernel.org>,
        linux-rt-users <linux-rt-users@...r.kernel.org>,
        Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [ANNOUNCE] v5.9.1-rt18

On 10/21/20 6:14 AM, Sebastian Andrzej Siewior wrote:
> On 2020-10-21 14:53:27 [+0200], To Thomas Gleixner wrote:
>> Dear RT folks!
>>
>> I'm pleased to announce the v5.9.1-rt18 patch set.

Maybe I'm doing something wrong but I get a compilation error (see 
below) when trying to do a debug build (building rpm packages for 
Fedora). 5.9.1 + rt19...

Builds fine otherwise...
Thanks,
-- Fernando



+ make -s 'HOSTCFLAGS=-O2 -g -pipe -Wall -Werror=format-security 
-Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions 
-fstack-protector-strong -grecord-gcc-switches 
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -fcommon -m64 
-mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection 
-fcf-protection' 'HOSTLDFLAGS=-Wl,-z,relro -Wl,--as-needed  -Wl,-z,now 
-specs=/usr/lib/rpm/redhat/redhat-hardened-ld' ARCH=x86_64 KCFLAGS= 
WITH_GCOV=0 -j4 modules
BUILDSTDERR: In file included from <command-line>:
BUILDSTDERR: lib/test_lockup.c: In function 'test_lockup_init':
BUILDSTDERR: lib/test_lockup.c:484:31: error: 'spinlock_t' {aka 'struct 
spinlock'} has no member named 'rlock'; did you mean 'lock'?
BUILDSTDERR:   484 |          offsetof(spinlock_t, rlock.magic),
BUILDSTDERR:       |                               ^~~~~
BUILDSTDERR: ././include/linux/compiler_types.h:135:57: note: in 
definition of macro '__compiler_offsetof'
BUILDSTDERR:   135 | #define __compiler_offsetof(a, b) 
__builtin_offsetof(a, b)
BUILDSTDERR:       | 
      ^
BUILDSTDERR: lib/test_lockup.c:484:10: note: in expansion of macro 
'offsetof'
BUILDSTDERR:   484 |          offsetof(spinlock_t, rlock.magic),
BUILDSTDERR:       |          ^~~~~~~~
BUILDSTDERR: ././include/linux/compiler_types.h:135:35: error: 
'rwlock_t' {aka 'struct rt_rw_lock'} has no member named 'magic'
BUILDSTDERR:   135 | #define __compiler_offsetof(a, b) 
__builtin_offsetof(a, b)
BUILDSTDERR:       |                                   ^~~~~~~~~~~~~~~~~~
BUILDSTDERR: ./include/linux/stddef.h:17:32: note: in expansion of macro 
'__compiler_offsetof'
BUILDSTDERR:    17 | #define offsetof(TYPE, MEMBER) 
__compiler_offsetof(TYPE, MEMBER)
BUILDSTDERR:       |                                ^~~~~~~~~~~~~~~~~~~
BUILDSTDERR: lib/test_lockup.c:487:10: note: in expansion of macro 
'offsetof'
BUILDSTDERR:   487 |          offsetof(rwlock_t, magic),
BUILDSTDERR:       |          ^~~~~~~~
BUILDSTDERR: lib/test_lockup.c:488:10: error: 'RWLOCK_MAGIC' undeclared 
(first use in this function); did you mean 'STACK_MAGIC'?
BUILDSTDERR:   488 |          RWLOCK_MAGIC) ||
BUILDSTDERR:       |          ^~~~~~~~~~~~
BUILDSTDERR:       |          STACK_MAGIC
BUILDSTDERR: lib/test_lockup.c:488:10: note: each undeclared identifier 
is reported only once for each function it appears in
BUILDSTDERR: In file included from <command-line>:
BUILDSTDERR: ././include/linux/compiler_types.h:135:35: error: 'struct 
mutex' has no member named 'wait_lock'
BUILDSTDERR:   135 | #define __compiler_offsetof(a, b) 
__builtin_offsetof(a, b)
BUILDSTDERR:       |                                   ^~~~~~~~~~~~~~~~~~
BUILDSTDERR: ./include/linux/stddef.h:17:32: note: in expansion of macro 
'__compiler_offsetof'
BUILDSTDERR:    17 | #define offsetof(TYPE, MEMBER) 
__compiler_offsetof(TYPE, MEMBER)
BUILDSTDERR:       |                                ^~~~~~~~~~~~~~~~~~~
BUILDSTDERR: lib/test_lockup.c:490:10: note: in expansion of macro 
'offsetof'
BUILDSTDERR:   490 |          offsetof(struct mutex, wait_lock.rlock.magic),
BUILDSTDERR:       |          ^~~~~~~~
BUILDSTDERR: ././include/linux/compiler_types.h:135:35: error: 'struct 
rw_semaphore' has no member named 'wait_lock'
BUILDSTDERR:   135 | #define __compiler_offsetof(a, b) 
__builtin_offsetof(a, b)
BUILDSTDERR:       |                                   ^~~~~~~~~~~~~~~~~~
BUILDSTDERR: ./include/linux/stddef.h:17:32: note: in expansion of macro 
'__compiler_offsetof'
BUILDSTDERR:    17 | #define offsetof(TYPE, MEMBER) 
__compiler_offsetof(TYPE, MEMBER)
BUILDSTDERR:       |                                ^~~~~~~~~~~~~~~~~~~
BUILDSTDERR: lib/test_lockup.c:493:10: note: in expansion of macro 
'offsetof'
BUILDSTDERR:   493 |          offsetof(struct rw_semaphore, 
wait_lock.magic),
BUILDSTDERR:       |          ^~~~~~~~
BUILDSTDERR: make[1]: *** [scripts/Makefile.build:283: 
lib/test_lockup.o] Error 1
BUILDSTDERR: make: *** [Makefile:1784: lib] Error 2
BUILDSTDERR: make: *** Waiting for unfinished jobs....



>>
>> Changes since v5.9.1-rt17:
>>
>>    - Update the migrate-disable series by Peter Zijlstra to v3. Include
>>      also fixes discussed in the thread.
>>
>>    - UP builds did not boot since the replace of the migrate-disable
>>      code. Reported by Christian Egger. Fixed as a part of v3 by Peter
>>      Zijlstra.
>>
>>    - Rebase the printk code on top of the ringer buffer designed for
>>      printk which was merged in the v5.10 merge window. Patches by John
>>      Ogness.
>>
>> Known issues
>>       - It has been pointed out that due to changes to the printk code the
>>         internal buffer representation changed. This is only an issue if tools
>>         like `crash' are used to extract the printk buffer from a kernel memory
>>         image.
>>
>> The delta patch against v5.9.1-rt17 is appended below and can be found here:
>>   
>>       https://cdn.kernel.org/pub/linux/kernel/projects/rt/5.9/incr/patch-5.9.1-rt17-rt18.patch.xz
>>
>> You can get this release via the git tree at:
>>
>>      git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git v5.9.1-rt18
>>
>> The RT patch against v5.9.1 can be found here:
>>
>>      https://cdn.kernel.org/pub/linux/kernel/projects/rt/5.9/older/patch-5.9.1-rt18.patch.xz
>>
>> The split quilt queue is available at:
>>
>>      https://cdn.kernel.org/pub/linux/kernel/projects/rt/5.9/older/patches-5.9.1-rt18.tar.xz
>>
> 
> The attached diff was too large and the mail was dropped. It is
> available at
> 	https://git.kernel.org/rt/linux-rt-devel/d/v5.9.1-rt18/v5.9.1-rt17
> 
> Sebastian
>