* [Buildroot] [Bug 14916] New: build buildroot with glibc and linux kernel 5.4 will cause error: "FATAL: kernel too old"
@ 2022-07-18 2:43 bugzilla
2022-07-18 2:46 ` [Buildroot] [Bug 14916] build buildroot with glibc and linux kernel 5.4, start with qemu " bugzilla
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: bugzilla @ 2022-07-18 2:43 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=14916
Bug ID: 14916
Summary: build buildroot with glibc and linux kernel 5.4 will
cause error: "FATAL: kernel too old"
Product: buildroot
Version: 2022.02.3
Hardware: All
OS: Linux
Status: NEW
Severity: major
Priority: P5
Component: Other
Assignee: unassigned@buildroot.uclibc.org
Reporter: tgeh23@qq.com
CC: buildroot@uclibc.org
Target Milestone: ---
Refer to this article for details: https://www.jianshu.com/p/55952ae88965
1. qemu start error
[ 3.405278] Run /sbin/init as init process
FATAL: kernel too old
[ 3.484534] Kernel panic - not syncing: Attempted to kill init!
exitcode=0x00007f00
[ 3.484974] CPU: 0 PID: 1 Comm: init Not tainted 5.4.195 #1
2. environment
host arch linux kernel buildroot glibc
ubuntu 20.04 x86_64 5.4.0-195/5.4.195 2022.02.3 2.34
3. error analysis
- buildroot set `BR2_TOOLCHAIN_HEADERS_AT_LEAST` to `5.4`
- but glibc's `--enable-kernel=X.Y.Z`
- buildroot missing `Z`
4. temporary solution
modify buildroot's .config `BR2_TOOLCHAIN_HEADERS_AT_LEAST` to `5.4.0`
5. recompile and start ok
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^ permalink raw reply [flat|nested] 8+ messages in thread
* [Buildroot] [Bug 14916] build buildroot with glibc and linux kernel 5.4, start with qemu will cause error: "FATAL: kernel too old"
2022-07-18 2:43 [Buildroot] [Bug 14916] New: build buildroot with glibc and linux kernel 5.4 will cause error: "FATAL: kernel too old" bugzilla
@ 2022-07-18 2:46 ` bugzilla
2022-07-18 6:25 ` bugzilla
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla @ 2022-07-18 2:46 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=14916
Fugui Liu <tgeh23@qq.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|build buildroot with glibc |build buildroot with glibc
|and linux kernel 5.4 will |and linux kernel 5.4, start
|cause error: "FATAL: kernel |with qemu will cause error:
|too old" |"FATAL: kernel too old"
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^ permalink raw reply [flat|nested] 8+ messages in thread
* [Buildroot] [Bug 14916] build buildroot with glibc and linux kernel 5.4, start with qemu will cause error: "FATAL: kernel too old"
2022-07-18 2:43 [Buildroot] [Bug 14916] New: build buildroot with glibc and linux kernel 5.4 will cause error: "FATAL: kernel too old" bugzilla
2022-07-18 2:46 ` [Buildroot] [Bug 14916] build buildroot with glibc and linux kernel 5.4, start with qemu " bugzilla
@ 2022-07-18 6:25 ` bugzilla
2022-07-18 21:43 ` bugzilla
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla @ 2022-07-18 6:25 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=14916
Fugui Liu <tgeh23@qq.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |2022.02
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^ permalink raw reply [flat|nested] 8+ messages in thread
* [Buildroot] [Bug 14916] build buildroot with glibc and linux kernel 5.4, start with qemu will cause error: "FATAL: kernel too old"
2022-07-18 2:43 [Buildroot] [Bug 14916] New: build buildroot with glibc and linux kernel 5.4 will cause error: "FATAL: kernel too old" bugzilla
2022-07-18 2:46 ` [Buildroot] [Bug 14916] build buildroot with glibc and linux kernel 5.4, start with qemu " bugzilla
2022-07-18 6:25 ` bugzilla
@ 2022-07-18 21:43 ` bugzilla
2022-07-18 22:00 ` bugzilla
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla @ 2022-07-18 21:43 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=14916
--- Comment #1 from Thomas Petazzoni <thomas.petazzoni@bootlin.com> ---
Thanks for the bug report. I am surprised we never realized this before.
Isn't the solution as simple as:
diff --git a/package/glibc/glibc.mk b/package/glibc/glibc.mk
index f3a08fbf24..6c54d044a5 100644
--- a/package/glibc/glibc.mk
+++ b/package/glibc/glibc.mk
@@ -99,7 +99,7 @@ GLIBC_MAKE = $(BR2_MAKE)
GLIBC_CONF_ENV += ac_cv_prog_MAKE="$(BR2_MAKE)"
ifeq ($(BR2_PACKAGE_GLIBC_KERNEL_COMPAT),)
-GLIBC_CONF_OPTS += --enable-kernel=$(call
qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST))
+GLIBC_CONF_OPTS += --enable-kernel=$(call
qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST)).0
endif
# Even though we use the autotools-package infrastructure, we have to
Indeed, $(BR2_TOOLCHAIN_HEADERS_AT_LEAST) never includes the minor version as
far as I can see. Yann, any opinion?
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^ permalink raw reply related [flat|nested] 8+ messages in thread
* [Buildroot] [Bug 14916] build buildroot with glibc and linux kernel 5.4, start with qemu will cause error: "FATAL: kernel too old"
2022-07-18 2:43 [Buildroot] [Bug 14916] New: build buildroot with glibc and linux kernel 5.4 will cause error: "FATAL: kernel too old" bugzilla
` (2 preceding siblings ...)
2022-07-18 21:43 ` bugzilla
@ 2022-07-18 22:00 ` bugzilla
2022-07-19 3:27 ` bugzilla
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla @ 2022-07-18 22:00 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=14916
Yann E. MORIN <yann.morin.1998@free.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |yann.morin.1998@free.fr
--- Comment #2 from Yann E. MORIN <yann.morin.1998@free.fr> ---
(In reply to Thomas Petazzoni from comment #1)
> -GLIBC_CONF_OPTS += --enable-kernel=$(call strip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST))
> +GLIBC_CONF_OPTS += --enable-kernel=$(call qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST)).0
It should not be necessary, because the glibc machinery explicitly already adds
a buncha dot-zeroes:
https://github.com/bminor/glibc/blob/master/sysdeps/unix/sysv/linux/configure.ac#L39
(mips has a special case, but uses the same construct).
user_version=$((`echo "$minimum_kernel.0.0.0" | [....]
with minimum_kernel defined there, from --enable-kernel=NNN :
https://github.com/bminor/glibc/blob/master/configure.ac#L273
Note that this is not recent; it's been there since 48d0c5d847a, in 2000...
So yeah, weird...
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^ permalink raw reply [flat|nested] 8+ messages in thread
* [Buildroot] [Bug 14916] build buildroot with glibc and linux kernel 5.4, start with qemu will cause error: "FATAL: kernel too old"
2022-07-18 2:43 [Buildroot] [Bug 14916] New: build buildroot with glibc and linux kernel 5.4 will cause error: "FATAL: kernel too old" bugzilla
` (3 preceding siblings ...)
2022-07-18 22:00 ` bugzilla
@ 2022-07-19 3:27 ` bugzilla
2022-07-23 14:05 ` bugzilla
2022-10-25 20:22 ` bugzilla
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla @ 2022-07-19 3:27 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=14916
--- Comment #3 from Fugui Liu <tgeh23@qq.com> ---
(In reply to Thomas Petazzoni from comment #1)
The solution I want is to be able to set the minior version when we `make
xxconfig`.
(In reply to Yann E. MORIN from comment #2)
I tested multi combinations.
1. buildroot-2022.02.3 with glibc 2.34 linux kernel 5.4/5.15
2. buildroot-2020.08 with glibc 2.31 linux kernle 5.4/5.7
All throw error: FATAL: kernel too old
If I modify buildroot's .config `BR2_TOOLCHAIN_HEADERS_AT_LEAST` to `5.4.0`,
everything is ok.
You can try to build and start.
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^ permalink raw reply [flat|nested] 8+ messages in thread
* [Buildroot] [Bug 14916] build buildroot with glibc and linux kernel 5.4, start with qemu will cause error: "FATAL: kernel too old"
2022-07-18 2:43 [Buildroot] [Bug 14916] New: build buildroot with glibc and linux kernel 5.4 will cause error: "FATAL: kernel too old" bugzilla
` (4 preceding siblings ...)
2022-07-19 3:27 ` bugzilla
@ 2022-07-23 14:05 ` bugzilla
2022-10-25 20:22 ` bugzilla
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla @ 2022-07-23 14:05 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=14916
--- Comment #4 from Yann E. MORIN <yann.morin.1998@free.fr> ---
Fugui Liu, All,
Can you provide a defconfig that exhibits the issue, please?
Regards,
Yann E. MORIN.
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^ permalink raw reply [flat|nested] 8+ messages in thread
* [Buildroot] [Bug 14916] build buildroot with glibc and linux kernel 5.4, start with qemu will cause error: "FATAL: kernel too old"
2022-07-18 2:43 [Buildroot] [Bug 14916] New: build buildroot with glibc and linux kernel 5.4 will cause error: "FATAL: kernel too old" bugzilla
` (5 preceding siblings ...)
2022-07-23 14:05 ` bugzilla
@ 2022-10-25 20:22 ` bugzilla
6 siblings, 0 replies; 8+ messages in thread
From: bugzilla @ 2022-10-25 20:22 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=14916
Thomas Petazzoni <thomas.petazzoni@bootlin.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |NEEDINFO
Status|NEW |RESOLVED
--- Comment #5 from Thomas Petazzoni <thomas.petazzoni@bootlin.com> ---
No feedback from the contributor, insufficient information to reproduce, so
closing the bug.
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