On Mon, Apr 15, 2024 at 8:43 PM Tao Liu <ltao(a)redhat.com> wrote:
 Hi Alexander,
 The patch looks good to me, so ack.
 Thanks,
 Tao Liu
 On Mon, Apr 15, 2024 at 2:41 PM Lianbo Jiang <lijiang(a)redhat.com> wrote:
 >
 > Hi, Alexander
 >
 > Thank you for the early fix.
 >
 > On 4/10/24 22:15, devel-request(a)lists.crash-utility.osci.io wrote:
 > > Date: Wed, 10 Apr 2024 14:55:35 +0200
 > > From: Alexander Gordeev<agordeev(a)linux.ibm.com>
 > > Subject: [Crash-utility] [PATCH] Reflect __{start,end}_init_task
 > >       kernel symbols rename
 > > To:devel@lists.crash-utility.osci.io
 > > Cc: Alexander Egorenkov<egorenar(a)linux.ibm.com>
 > > Message-ID:<20240410125535.2891355-1-agordeev@linux.ibm.com>
 > >
 > > Kernel commit 8f69cba096b5 ("x86: Rename __{start,end}_init_task to
 > > __{start,end}_init_stack") leads to failure:
 > >
 > >       crash: invalid count request: 0
 >
 > Could you please point out which command caused the current failure? or
 > failed when crash load?
 >
 >
 > Anyway, the code changes are fine to me.
 >
 >
 > Thanks
 >
 > Lianbo
 >
 > > Assume both __{start,end}_init_task and __{start,end}_init_stack
 > > symbols could exist for backward compatibility.
 > >
 > > Signed-off-by: Alexander Gordeev<agordeev(a)linux.ibm.com>
 > > ---
 > >   task.c | 7 +++++++
 > >   1 file changed, 7 insertions(+)
 > >
 
Currently kernel commit 8f69cba096b5 is in the linux master branch.
Applied:
https://github.com/crash-utility/crash/commit/3879e9104826d5ae14a0824ec47...
Thanks
Lianbo
 > diff --git a/task.c b/task.c
 > > index ebdb5be..88e1d50 100644
 > > --- a/task.c
 > > +++ b/task.c
 > > @@ -496,10 +496,17 @@ task_init(void)
 > >               ((len = SIZE(thread_union)) != STACKSIZE())) {
 > >               machdep->stacksize = len;
 > >       } else if (!VALID_SIZE(thread_union) && !VALID_SIZE(task_union))
 {
 > > +             len = 0;
 > >               if (kernel_symbol_exists("__start_init_task")
&&
 > >                   kernel_symbol_exists("__end_init_task")) {
 > >                       len = symbol_value("__end_init_task");
 > >                       len -= symbol_value("__start_init_task");
 > > +             } else if (kernel_symbol_exists("__start_init_stack")
&&
 > > +                        kernel_symbol_exists("__end_init_stack")) {
 > > +                     len = symbol_value("__end_init_stack");
 > > +                     len -= symbol_value("__start_init_stack");
 > > +             }
 > > +             if (len) {
 > >                       ASSIGN_SIZE(thread_union) = len;
 > >                       machdep->stacksize = len;
 > >               }
 > > -- 2.40.1