Re: Regression in 028abd92 for Sun UltraSPARC T1

[Frank Scheiner <frank.scheiner@web.de>]

On 24.03.21 14:24, Anatoly Pugachev wrote:
> On Wed, Mar 24, 2021 at 4:19 PM Frank Scheiner <frank.scheiner@web.de> wrote:
>> On 24.03.21 14:16, John Paul Adrian Glaubitz wrote:
>>> On 3/24/21 2:09 PM, Frank Scheiner wrote:> Kernel sources are not available on the T1000.
>>>>
>>>> If need be, where do they need to exist and how should the directory be
>>>> named - `/usr/src/[...]`?
>>>
>>> Try installing "linux-source" and the "-dbg" package for your Debian kernel.
>>
>> But don't I need the source for the kernel at 028abd92? I figured, I
>> need the sources in `/usr/src/linux-source-5.9.0-rc1+` because
>> "5.9.0-rc1+" is the version the corresponding modules are installed -
>> could that be correct?
>
> Frank,
>
> i'm using gdb from kernel sources directory (from which kernel is
> installed), like:
>
> $ uname -a
> Linux ttip 5.12.0-rc4 #203 SMP Wed Mar 24 15:50:29 MSK 2021 sparc64 GNU/Linux
> $ cd linux-2.6
> linux-2.6$ git describe
> v5.12-rc4
> linux-2.6$ gdb -q vmlinux
> Reading symbols from vmlinux...
> (gdb) l *(sys_mount+0x114/0x1e0)
> 0x6dd7c0 is in __se_sys_mount (fs/namespace.c:3431).
> 3426            /* ... and return the root of (sub)tree on it */
> 3427            return path.dentry;
> 3428    }
> 3429    EXPORT_SYMBOL(mount_subtree);
> 3430
> 3431    SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
> 3432                    char __user *, type, unsigned long, flags,
> void __user *, data)
> 3433    {
> 3434            int ret;
> 3435            char *kernel_type;
> (gdb)
>

Ok, will try that approach. I'm currently `tar`ing the kernel sources
@028abd92 on the cross-compiling host and will move them over to the T1000.

Cheers,
Frank