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From: Corentin Labbe <clabbe.montjoie@gmail.com>
To: ebiederm@xmission.com, kexec@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Subject: crashkernel reservation failed - No suitable area found on a cortina/gemini SoC
Date: Wed, 7 Apr 2021 14:54:23 +0200	[thread overview]
Message-ID: <YG2rfzRvHIZKXkf/@Red> (raw)

Hello

I try to do kexec on a cortina/gemini SoC.
On a "normal" boot, kexec fail to find memory so I added crashkernel=8M to cmdline. (kernel size is ~6M).
But now, kernel fail to reserve memory:
Load Kern image from 0x30020000 to 0x800000 size 7340032                                            
Booting Linux on physical CPU 0x0                                                                   
Linux version 5.12.0-rc5-next-20210401+ (compile@Red) (armv7a-unknown-linux-gnueabihf-gcc (Gentoo 9.3.0-r2 p4) 9.3.0, GNU ld (Gentoo 2.34 p6) 2.34.0) #98 PREEMPT Wed Apr 7 14:14:08 CEST 2021
CPU: FA526 [66015261] revision 1 (ARMv4), cr=0000397f                                               
CPU: VIVT data cache, VIVT instruction cache                                                        
OF: fdt: Machine model: Edimax NS-2502                                                              
Memory policy: Data cache writeback                                                                 
Zone ranges:                                                                                        
  Normal   [mem 0x0000000000000000-0x0000000007ffffff]                                              
  HighMem  empty                                                                                    
Movable zone start for each node                                                                    
Early memory node ranges                                                                            
  node   0: [mem 0x0000000000000000-0x0000000007ffffff]                                             
Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]                                    
crashkernel reservation failed - No suitable area found.                                            
Built 1 zonelists, mobility grouping on.  Total pages: 32512                                        
Kernel command line: console=ttyS0,19200n8 ip=dhcp crashkernel=8M                                   
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear)                              
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear)                                
mem auto-init: stack:off, heap alloc:off, heap free:off                                             
Memory: 119476K/131072K available (5034K kernel code, 579K rwdata, 1372K rodata, 3020K init, 210K bss, 11596K reserved, 0K cma-reserved, 0K highmem)
SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1                                          

What can I do ?

Thanks
Regards

_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

WARNING: multiple messages have this Message-ID (diff)
From: Corentin Labbe <clabbe.montjoie@gmail.com>
To: ebiederm@xmission.com, kexec@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Subject: crashkernel reservation failed - No suitable area found on a cortina/gemini SoC
Date: Wed, 7 Apr 2021 14:54:23 +0200	[thread overview]
Message-ID: <YG2rfzRvHIZKXkf/@Red> (raw)

Hello

I try to do kexec on a cortina/gemini SoC.
On a "normal" boot, kexec fail to find memory so I added crashkernel=8M to cmdline. (kernel size is ~6M).
But now, kernel fail to reserve memory:
Load Kern image from 0x30020000 to 0x800000 size 7340032                                            
Booting Linux on physical CPU 0x0                                                                   
Linux version 5.12.0-rc5-next-20210401+ (compile@Red) (armv7a-unknown-linux-gnueabihf-gcc (Gentoo 9.3.0-r2 p4) 9.3.0, GNU ld (Gentoo 2.34 p6) 2.34.0) #98 PREEMPT Wed Apr 7 14:14:08 CEST 2021
CPU: FA526 [66015261] revision 1 (ARMv4), cr=0000397f                                               
CPU: VIVT data cache, VIVT instruction cache                                                        
OF: fdt: Machine model: Edimax NS-2502                                                              
Memory policy: Data cache writeback                                                                 
Zone ranges:                                                                                        
  Normal   [mem 0x0000000000000000-0x0000000007ffffff]                                              
  HighMem  empty                                                                                    
Movable zone start for each node                                                                    
Early memory node ranges                                                                            
  node   0: [mem 0x0000000000000000-0x0000000007ffffff]                                             
Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]                                    
crashkernel reservation failed - No suitable area found.                                            
Built 1 zonelists, mobility grouping on.  Total pages: 32512                                        
Kernel command line: console=ttyS0,19200n8 ip=dhcp crashkernel=8M                                   
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear)                              
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear)                                
mem auto-init: stack:off, heap alloc:off, heap free:off                                             
Memory: 119476K/131072K available (5034K kernel code, 579K rwdata, 1372K rodata, 3020K init, 210K bss, 11596K reserved, 0K cma-reserved, 0K highmem)
SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1                                          

What can I do ?

Thanks
Regards

             reply	other threads:[~2021-04-07 12:54 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-07 12:54 Corentin Labbe [this message]
2021-04-07 12:54 ` crashkernel reservation failed - No suitable area found on a cortina/gemini SoC Corentin Labbe
2021-04-07 14:13 ` Bruce Mitchell
2021-04-07 14:13   ` Bruce Mitchell
2021-04-07 14:23   ` Corentin Labbe
2021-04-07 14:23     ` Corentin Labbe
2021-04-07 14:28     ` Bruce Mitchell
2021-04-07 14:28       ` Bruce Mitchell
2021-04-07 14:48       ` Corentin Labbe
2021-04-07 14:48         ` Corentin Labbe
2021-04-07 14:59         ` Bruce Mitchell
2021-04-07 14:59           ` Bruce Mitchell
2021-04-09 14:53           ` Corentin Labbe
2021-04-09 14:53             ` Corentin Labbe
2021-04-09 15:06             ` Corentin Labbe
2021-04-09 15:06               ` Corentin Labbe

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