Modules built and available at https://launchpad.net/~john-
cabaj/+archive/ubuntu/hwe-6.17-dkms

** Description changed:

  [ Impact ]
  
  DKMS make.log for rapiddisk-dkms-9.1.0 for kernel 6.17.0-7-generic (x86_64)
  Tue Dec  9 23:00:44 UTC 2025
  make: Entering directory '/usr/src/linux-headers-6.17.0-7-generic'
  make[1]: Entering directory '/var/lib/dkms/rapiddisk-dkms/9.1.0/build'
  warning: the compiler differs from the one used to build the kernel
-   The kernel was built by: x86_64-linux-gnu-gcc-13 (Ubuntu 
13.3.0-6ubuntu2~24.04) 13.3.0
-   You are using:           gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
-   CC [M]  rapiddisk.o
-   CC [M]  rapiddisk-cache.o
+   The kernel was built by: x86_64-linux-gnu-gcc-13 (Ubuntu 
13.3.0-6ubuntu2~24.04) 13.3.0
+   You are using:           gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
+   CC [M]  rapiddisk.o
+   CC [M]  rapiddisk-cache.o
  In file included from 
/usr/src/linux-headers-6.17.0-7-generic/include/linux/build_bug.h:5,
-                  from 
/usr/src/linux-headers-6.17.0-7-generic/include/linux/init.h:5,
-                  from rapiddisk.c:26:
+                  from 
/usr/src/linux-headers-6.17.0-7-generic/include/linux/init.h:5,
+                  from rapiddisk.c:26:
  rapiddisk.c: In function ‘rdsk_lookup_page’:
  rapiddisk.c:252:28: error: ‘struct page’ has no member named ‘index’
-   252 |         BUG_ON(page && page->index != idx);
-       |                            ^~
+   252 |         BUG_ON(page && page->index != idx);
+       |                            ^~
  /usr/src/linux-headers-6.17.0-7-generic/include/linux/compiler.h:77:45: note: 
in definition of macro ‘unlikely’
-    77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
-       |                                             ^
+    77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
+       |                                             ^
  rapiddisk.c:252:9: note: in expansion of macro ‘BUG_ON’
-   252 |         BUG_ON(page && page->index != idx);
-       |         ^~~~~~
+   252 |         BUG_ON(page && page->index != idx);
+       |         ^~~~~~
  rapiddisk.c: In function ‘rdsk_insert_page’:
  rapiddisk.c:288:13: error: ‘struct page’ has no member named ‘index’
-   288 |         page->index = idx;
-       |             ^~
+   288 |         page->index = idx;
+       |             ^~
  rapiddisk.c:293:28: error: ‘struct page’ has no member named ‘index’
-   293 |                 BUG_ON(page->index != idx);
-       |                            ^~
+   293 |                 BUG_ON(page->index != idx);
+       |                            ^~
  /usr/src/linux-headers-6.17.0-7-generic/include/linux/compiler.h:77:45: note: 
in definition of macro ‘unlikely’
-    77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
-       |                                             ^
+    77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
+       |                                             ^
  rapiddisk.c:293:17: note: in expansion of macro ‘BUG_ON’
-   293 |                 BUG_ON(page->index != idx);
-       |                 ^~~~~~
+   293 |                 BUG_ON(page->index != idx);
+       |                 ^~~~~~
  rapiddisk.c: In function ‘rdsk_free_pages’:
  rapiddisk.c:332:40: error: ‘struct page’ has no member named ‘index’
-   332 |                         BUG_ON(pages[i]->index < pos);
-       |                                        ^~
+   332 |                         BUG_ON(pages[i]->index < pos);
+       |                                        ^~
  /usr/src/linux-headers-6.17.0-7-generic/include/linux/compiler.h:77:45: note: 
in definition of macro ‘unlikely’
-    77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
-       |                                             ^
+    77 | # define unlikely(x)    __builtin_expect(!!(x), 0)
+       |                                             ^
  rapiddisk.c:332:25: note: in expansion of macro ‘BUG_ON’
-   332 |                         BUG_ON(pages[i]->index < pos);
-       |                         ^~~~~~
+   332 |                         BUG_ON(pages[i]->index < pos);
+       |                         ^~~~~~
  rapiddisk.c:333:39: error: ‘struct page’ has no member named ‘index’
-   333 |                         pos = pages[i]->index;
-       |                                       ^~
+   333 |                         pos = pages[i]->index;
+       |                                       ^~
  make[3]: *** 
[/usr/src/linux-headers-6.17.0-7-generic/scripts/Makefile.build:287: 
rapiddisk.o] Error 1
  make[3]: *** Waiting for unfinished jobs....
  make[2]: *** [/usr/src/linux-headers-6.17.0-7-generic/Makefile:2016: .] Error 
2
  make[1]: *** [/usr/src/linux-headers-6.17.0-7-generic/Makefile:248: 
__sub-make] Error 2
  make[1]: Leaving directory '/var/lib/dkms/rapiddisk-dkms/9.1.0/build'
  make: *** [Makefile:248: __sub-make] Error 2
  make: Leaving directory '/usr/src/linux-headers-6.17.0-7-generic'
  
  [ Test case ]
  
  Install the latest linux-6.17 kernel on Noble:
  
  $ sudo add-apt-repository ppa:canonical-kernel-team/ppa3
  $ sudo apt install linux-generic-hwe-24.04-edge
  
  Install rapiddisk-dkms:
  
  $ sudo apt install rapiddisk-dkms
  
+ Modules built and installed successfully.
+ 
  Load the modules:
  
  $ sudo modprobe rapiddisk
  $ sudo modprobe rapiddisk-cache
+ 
+ Modules loaded successfully.
  
  The same procedure can be repeated on linux-6.8 to test for possible
  regressions.
  
  Install the latest kernel on Questing and Resolute:
  
  Install rapiddisk-dkms:
  
  $ sudo apt install rapiddisk-dkms
  
+ Modules built and installed successfully.
+ 
  Load the modules:
  
  $ sudo modprobe rapiddisk
- $ sudo modprobe rapiddisk-cache
+ $ sudo modprobe rapiddisk-cache.
+ 
+ Modules loaded successfully.
  
  [ Fix ]
  
  Custom patch from rapiddisk (https://github.com/pkoutoupis/rapiddisk/):
  
  -debian/patches/0001-Page-struct-no-longer-has-index-member-so-
  switching-.patch
  
  [ Regression potential ]
  
  We may experience regressions in systems that are using the rapiddisk
  drivers, especially with kernels >= 6.8 kernel.

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https://bugs.launchpad.net/bugs/2134569

Title:
  rapiddisk-dkms FTBS in Noble with the linux-6.17 kernel

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