On Mon, Sep 22, 2025 at 10:58:21AM +0800, Chenghao Duan wrote: > On Mon, Sep 22, 2025 at 10:10:57AM +0800, Chenghao Duan wrote: > > The default COMMAND_LINE_SIZE inherited from asm-generic is 512, which > > is too small for modern use cases. For example, when the parameter path > > in the cmdline of the kdump first kernel is too long, the limit is > > easily exceeded when loading the second kernel. > > > > Increase the command line size to 4096 bytes, In LoongArch, this is > > consistent with the upstream configuration of the Linux kernel. > > linux kernel commit: f7794a4d92ade518c813de69a01b27ca6d8d86f3. > > I'm very sorry, but the commit ID in the previous email was incorrect. > linux kernel commit: f7794a4d92ad(LoongArch: Increase COMMAND_LINE_SIZE up to > 4096).
Thanks, I have applied this patch. - LoongArch: Change COMMAND_LINE_SIZE to 4096 https://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git/commit/?id=b8f6c2a98d2c And I updated the text when applying to read: Increase the command line size to 4096 bytes, In LoongArch, this is consistent with the upstream configuration of the Linux kernel as of commit f7794a4d92ad ("LoongArch: Increase COMMAND_LINE_SIZE up to 4096"). > > This patch is necessary because the Linux kernel has been changed to > > 4096. When the kernel cmdline size exceeds 512, the --reuse-cmdline > > option of the kexec command will inevitably result in an error. > > > > The COMMAND_LINE_SIZE in kexec/arch/loongarch/crashdump-loongarch.h > > is unused, so it is removed here. > > > > Suggested-by: Youling Tang <tangyoul...@kylinos.cn> > > Signed-off-by: Chenghao Duan <duancheng...@kylinos.cn> ...
