building pve kernel fails with make[2]: *** [debian/rules:281: abicheck] Fehler 1

RolandK

RolandK

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Mar 5, 2019
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i'm reproducably getting this error when trying to build pve kernel from git. i'd like to try to test a btrfs patch.

does somebody know why this happens and how to resolve?

i spent quite a wile to figure it out, but i get no clue what's the problem.


Code: 
<snip>
    NEW : _RNvXs8D_NtCs96IA0BLzxNi_8bindings12bindings_rawNtB6_17key__bindgen_ty_3NtNtCseXpNQPFWrFr_4core7default7Default7default
    NEW : _RNvXs4M_NtCs96IA0BLzxNi_8bindings12bindings_rawNtB6_10saved_msrsNtNtCseXpNQPFWrFr_4core7default7Default7default
    NEW : _RNvXsD_NtCs96IA0BLzxNi_8bindings12bindings_rawNtB5_15ratelimit_stateNtNtCseXpNQPFWrFr_4core7default7Default7default
    NEW : _RNvXsw_NtNtCs8sY0e6sj61O_6kernel6device8propertyaNtB5_8Property25read_from_fwnode_property
    NEW : _RNvXsqy_NtCs96IA0BLzxNi_8bindings12bindings_rawNtB6_14irq_alloc_infoNtNtCseXpNQPFWrFr_4core7default7Default7default
    NEW : _RNvXsm1_NtCs96IA0BLzxNi_8bindings12bindings_rawNtB6_12fprop_globalNtNtCseXpNQPFWrFr_4core7default7Default7default
    NEW : _RNvXsmY_NtCs96IA0BLzxNi_8bindings12bindings_rawNtB6_51bpf_jit_poke_descriptor__bindgen_ty_1__bindgen_ty_1NtNtCseXpNQPFWrFr_4core7default7Default7default
    NEW : _RNvXs4P_NtCs96IA0BLzxNi_8bindings12bindings_rawNtB6_19system_counterval_tNtNtCseXpNQPFWrFr_4core7default7Default7default
    found 2394 new symbols
WW: Found new symbols. Not recommended unless ABI was bumped
II: Checking for changes to ABI...
II: Done
make[2]: *** [debian/rules:281: abicheck] Fehler 1
make[2]: *** Es wird auf noch nicht beendete Prozesse gewartet …
mv fwlist.tmp fwlist-7.0.2-6-pve-amd64
make[2]: Verzeichnis „/build/pve-kernel/proxmox-kernel-7.0.2“ wird verlassen
make[1]: *** [debian/rules:71: binary] Fehler 2
make[1]: Verzeichnis „/build/pve-kernel/proxmox-kernel-7.0.2“ wird verlassen
dpkg-buildpackage: Fehler: Unterprozess debian/rules binary lieferte Exitstatus 2
make: *** [Makefile:75: proxmox-kernel-7.0.2-6-pve_7.0.2-6_amd64.deb] Fehler 2
roland@debian13:/build/pve-kernel$ pwd
/build/pve-kernel


i did proceed according to README:

1. installed all build dependencies

2. cd /build ; git clone git://git.proxmox.com/git/pve-kernel.git

3. cd /build/pve-kernel

4. make build-dir-fresh

5. mk-build-deps -ir proxmox-kernel-7.0.2/debian/control

6. make deb

that runs for quite a while and then finally bails out reproducably with this error.
 
Last edited:
while running make build-dir-fresh, i see this weird error

Code: 
cd proxmox-kernel-7.0.2; debian/rules debian/control
make[2]: Verzeichnis „/build/pve-kernel/proxmox-kernel-7.0.2“ wird betreten
dpkg-buildapi: Fehler: debian/control kann nicht gelesen werden: No such file or directory
/bin/sh: 1: test: Illegal number:
dpkg-buildapi: Fehler: debian/control kann nicht gelesen werden: No such file or directory
/bin/sh: 1: test: Illegal number:

dpkg-buildapi looks related
 
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Does the folder /build/pve-kernel/proxmox-kernel-7.0.2/debian/control/ actually exist?

Looking at 3 and 5 you might now have /build/pve-kernel/pve-kernel/proxmox-kernel-7.0.2/debian/control/
 
>Does the folder /build/pve-kernel/proxmox-kernel-7.0.2/debian/control/ actually exist?

yes

>Looking at 3 and 5 you might now have /build/pve-kernel/pve-kernel/proxmox-kernel-7.0.2/debian/control/

sorry, posted the wrong path. i meant mk-build-deps -ir proxmox-kernel-7.0.2/debian/control
 
It's extremely jarring to read different languages within the same line. Please change your system language. At least temporarily.
 
if you change the kernel sources in a way that changes the ABI, you need to bump the ABI ("KREL" in Makefile and changelog bump), or disable those checks (SKIPABI env variable). the other warnings are benign - they are caused by d/control being a generated file, but d/rules sourcing some things that expect it to exist already.
 
yes sure, but i did not yet change the kernel sources at all.

i'm getting the same error on debian12

now with language set to en_US


Code: 
    HASH : bus_register                             : 0x822ffa38 => 0x08b3d7ec
    HASH : _dev_alert                               : 0x347a8561 => 0xf799f1e1
    HASH : __devm_add_action                        : 0xcae75bdd => 0xd0fb53b6
    HASH : pm_runtime_autosuspend_expiration        : 0x23996393 => 0x720d9fea
EE: 245 symbols changed hash and weren't ignored
II: Module hash change summary...
    vmlinux                                 : 245
II: Done
make[2]: *** [debian/rules:281: abicheck] Error 1
make[2]: Leaving directory '/build/pve-kernel/proxmox-kernel-7.0.2'
make[1]: *** [debian/rules:71: binary] Error 2
make[1]: Leaving directory '/build/pve-kernel/proxmox-kernel-7.0.2'
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
make: *** [Makefile:75: proxmox-kernel-7.0.2-6-pve_7.0.2-6_amd64.deb] Error 2



i excluded the "debian/rules fwcheck abicheck" command in rules file and now the build succeeded.
 
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are you sure you are starting from a clean slate? what does "git status" say?
 
a clean checkout of current master (87f22e55de30d73b83722b86790394564036b33c) followed by `make clean deb` works fine here.
 
yes, i started from clean state and git status showed nothing special .

also with exact these command, i get the same error/problem.

could you (@fabian or someone else who is able to compile successfulle) perhaps post his package list, so i can sure it's not being cause by missing package? what's your build host distro/version?
 
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an uptodate PVE system, but it also works in a clean environment with just the build dependencies installed.. could you post the output of "git status"? do you have the "devel" repository configured (it has a newer rustc which is nowadays used for kernel builds and might cause a diff)?
 
@fabian your list of packages and your pointer was very helpful.

turns out that the problem is being cause by different versions of rust or llvm toolchain.

i see that you have

Code: 
libllvm21 (= 1:21.1.8-3~bpo13+2),
 libpopt0 (= 1.19+dfsg-2),
 libstd-rust-1.94 (= 1.94.1+dfsg1-1~bpo13+1),
 libstd-rust-dev (= 1.94.1+dfsg1-1~bpo13+1),
 rust-clippy (= 1.94.1+dfsg1-1~bpo13+1),
 rust-src (= 1.94.1+dfsg1-1~bpo13+1),
 rustc (= 1.94.1+dfsg1-1~bpo13+1),
 rustfmt (= 1.94.1+dfsg1-1~bpo13+1),

on your system , i.e. these are newer versions from debian trixie backports repo - and using older/default versions apparently makes generating /data/pve-kernel/proxmox-kernel-7.0.2/abi-7.0.2-6-pve-amd64 for creating the diff with abi-prev-7.0.2-6-pve-amd64 go wrong, i.e. there is massive abi change detected where in real it doesn't exist at all. (diff now is zero, whereas before it was different hunddred of lines)

i have updated these packages to the bpo versions and rebuild and the problem is resolved.

so, apparently we have subtle/sensible build tools/chain dependencies , which don't seem to be well documented.

>do you have the "devel" repository configured (it has a newer rustc which is nowadays used for kernel builds and might cause a diff)?

no , i don't but as YOU seem to have backports repo enabled and as updating the tools to backports version fixed it , it lets me assume, that the sources in git with the generated abi-prev-7.0.2-6-pve-amd64 must be from such an updated system with backport tools installed.

maybe this dependency change has been introduced recently , so nobody yet noticed - or only few people do pve kernel builds at all. or both.

i would suggest updating the developer docs/readme, as this was a real bummer. i spent several hours on digging into this issue.

fixing this helped me finish my testing with btrfs patch, reported at https://bugzilla.proxmox.com/show_bug.cgi?id=5320#c15

thank you for your help
 
Last edited:
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