Re: [PATCH] ia64: enable HAVE_COPY_THREAD_TLS, switch to kernel_clone_args

[Christian Brauner]

On Thu, May 14, 2020 at 11:48:31AM +0200, John Paul Adrian Glaubitz wrote:
> 
> 
> On 5/14/20 9:53 AM, John Paul Adrian Glaubitz wrote:
> > The kernel is currently building, you should get it by the evening (CEST).
> > 
> > The machine also serves as a Debian buildd which is why it's a bit more
> > busy than other servers.
> I applied the patch against 5.7-rc5, it applied fine and builds fine.
> 
> It seems though that systemd crashes but I'm not sure it's related:
> 
> [   14.267489] init[1]: General Exception: IA-64 Reserved Register/Field fault (data access) 2199023255600 [1]                     
> [   14.267489] Modules linked in:                                                                                                  
> [   14.267489]                                                                                                                     
> [   14.267489] CPU: 0 PID: 1 Comm: init Not tainted 5.7.0-rc5 #1                                                                   
> [   14.267489] Hardware name: hp server BL860c                   , BIOS 04.25                                                            07/02/2010                                                                                                                   
> [   14.267489] psr : 0000121008526030 ifs : 8000000000000510 ip  : [<a00000010000c541>]    Not tainted (5.7.0-rc5)                 
> [   14.267489] ip is at sys_clone2+0x61/0x80                                                                                       
> [   14.267489] unat: 0000000000000000 pfs : 0000000000000510 rsc : 0000000000000003                                                
> [   14.267489] rnat: 0000000000000000 bsps: 0000000000000000 pr  : 000000000001a959                                                
> [   14.267489] ldrs: 0000000000000000 ccv : 0000000000000002 fpsr: 0009804c8a70033f                                                
> [   14.267489] csd : 0000000000000000 ssd : 0000000000000000                                                                       
> [   14.267489] b0  : a00000010000c540 b6  : a0000001000edf80 b7  : a000000100369560                                                
> [   14.267489] f6  : 1003e000000000000b8a4 f7  : 1003e00000001754e8d69                                                             
> [   14.267489] f8  : 1003e0000000178311d69 f9  : 100098000000000000000
> [   14.267489] f10 : 1000eb8a3fffff475c000 f11 : 1003e000000000000b8a4
> [   14.267489] r1  : a0000001017a6f10 r2  : 0000000000000000 r3  : 0000000000000006
> [   14.267489] r8  : 0000000000000066 r9  : 0000000000000060 r10 : e0000100800d8e68
> [   14.267489] r11 : 0000000000000002 r12 : e00001008027fe30 r13 : e000010080278000
> [   14.267489] r14 : e0000100800d8e04 r15 : e0000100800d8e08 r16 : 0000000000000002
> [   14.267489] r17 : 0000000000000001 r18 : 0000000000000002 r19 : 0000000000000003
> [   14.267489] r20 : 0000000000000004 r21 : e00001008027fb98 r22 : e000000001146d02
> [   14.267489] r23 : 00000000000030c8 r24 : 00000000000030c8 r25 : 00000000000030ca
> [   14.267489] r26 : 00000000000030ca r27 : 00000000000030ca r28 : e00001008027fb90
> [   14.267489] r29 : 0000000000000400 r30 : 00000000000002e8 r31 : 0000000000000400
> [   14.267489] 
> [   14.267489] Call Trace:
> [   14.267489]  [<a000000100015090>] show_stack+0x90/0xc0
> [   14.267489]                                 sp=e00001008027f9f0 bsp=e000010080279288
> [   14.267489]  [<a000000100015780>] show_regs+0x6c0/0xa20
> [   14.267489]                                 sp=e00001008027fbc0 bsp=e000010080279218
> [   14.267489]  [<a000000100029590>] die+0x1b0/0x4a0
> [   14.267489]                                 sp=e00001008027fbe0 bsp=e0000100802791d0
> [   14.267489]  [<a00000010100e690>] ia64_fault+0x770/0xd80
> [   14.267489]                                 sp=e00001008027fbe0 bsp=e000010080279180
> [   14.267489]  [<a00000010000ce60>] ia64_leave_kernel+0x0/0x270
> [   14.267489]                                 sp=e00001008027fc60 bsp=e000010080279180
> [   14.267489]  [<a00000010000c540>] sys_clone2+0x60/0x80
> [   14.267489]                                 sp=e00001008027fe30 bsp=e000010080279100
> [   14.267489] Disabling lock debugging due to kernel taint
> [   14.267489] init[102]: General Exception: IA-64 Reserved Register/Field fault (data access) 4398046511152 [2]
> [   14.350730] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
>     [1 4 . 31540.733500]7 3-0-]- [- -e-n[d  eKnedr nKeelr npealn pani[c   -  1n4o.t2 6s7y4n8c9i]n g:
> :Attem [D      1 4 . 2 6 7 4 8 95]. 7C.P0U-:r c15  P#I1D
> i e1=002x 0C0o0m0m0:0 0ibn i]t- -T-a
>  nted: G      D           5.7.0-rc5 #1
> 
> I have to perform more testing. The machine boots fine with a 5.5.x kernel.

Ok, so the good news is that from our other mail exchange we know that
it doesn't boot on 5.6 without my patch too.

Christian