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<font size="-1"><tt>Hi Nicolas,<br>
<br>
I was trying to boot 3.8-rc5 on Realview EB 11MPCore using realview-smp_defconfig as a starting point but the kernel failed to progress past the log below (config attached).<br>
<br>
Pawel suggested I try reverting 384a290283fde63ba8dc671fca5420111cdac19a - "ARM: gic: use a private mapping for CPU target interfaces" that you've authored. With this commit reverted the kernel boots.<br>
<br>
I am not quite sure why the commit breaks 11MPCore but Pawel (cc'd) might be able to shed light on that.<br>
<br>
I'd be happy to test a fix as I have the board on my desk for a bit.<br>
<br>
Thanks,<br>
<br>
Punit<br>
<br>
<br>
<font size="-1">## Booting kernel from Legacy Image at 00007fc0 ...<br>
Image Name: Linux-3.8.0-rc5<br>
Image Type: ARM Linux Kernel Image (uncompressed)<br>
Data Size: 2351296 Bytes = 2.2 MB<br>
Load Address: 00008000<br>
Entry Point: 00008000<br>
Loading Kernel Image ... OK<br>
OK<br>
<br>
Starting kernel ...<br>
<br>
Uncompressing Linux... done, booting the kernel.<br>
Booting Linux on physical CPU 0x0<br>
Linux version 3.8.0-rc5 (punagr01@e102309-lin) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #28 SMP Wed Jan 30 15:06:13 GMT 2013<br>
CPU: ARMv6-compatible processor [410fb020] revision 0 (ARMv7), cr=00c5387d<br>
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache<br>
Machine: ARM-RealView EB<br>
Ignoring unrecognised tag 0x00000000<br>
bootconsole [earlycon0] enabled<br>
Memory policy: ECC disabled, Data cache writealloc<br>
sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms<br>
PERCPU: Embedded 8 pages/cpu @c070b000 s9920 r8192 d14656 u32768<br>
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024<br>
Kernel command line: root=/dev/nfs ip=dhcp console=ttyAMA0 nfsroot=10.1.193.144:/work/filesystems/11MPCore earlyprintk<br>
PID hash table entries: 1024 (order: 0, 4096 bytes)<br>
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)<br>
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)<br>
__ex_table already sorted, skipping sort<br>
Memory: 256MB = 256MB total<br>
Memory: 254596k/254596k available, 7548k reserved, 0K highmem<br>
Virtual kernel memory layout:<br>
vector : 0xffff0000 - 0xffff1000 ( 4 kB)<br>
fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)<br>
vmalloc : 0xd0800000 - 0xff000000 ( 744 MB)<br>
lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)<br>
modules : 0xbf000000 - 0xc0000000 ( 16 MB)<br>
.text : 0xc0008000 - 0xc0457d78 (4416 kB)<br>
.init : 0xc0458000 - 0xc048d6c0 ( 214 kB)<br>
.data : 0xc048e000 - 0xc04c8db0 ( 236 kB)<br>
.bss : 0xc04c8db0 - 0xc05076e8 ( 251 kB)<br>
Hierarchical RCU implementation.<br>
NR_IRQS:128<br>
------------[ cut here ]------------<br>
WARNING: at arch/arm/common/gic.c:738 gic_init_bases+0x118/0x2ac()<br>
Cannot allocate irq_descs @ IRQ96, assuming pre-allocated<br>
Modules linked in:<br>
[<c0015fd8>] (unwind_backtrace+0x0/0xfc) from [<c0327b30>] (dump_stack+0x20/0x24)<br>
[<c0327b30>] (dump_stack+0x20/0x24) from [<c001fe44>] (warn_slowpath_common+0x5c/0x74)<br>
[<c001fe44>] (warn_slowpath_common+0x5c/0x74) from [<c001ff18>] (warn_slowpath_fmt+0x40/0x48)<br>
[<c001ff18>] (warn_slowpath_fmt+0x40/0x48) from [<c045cfe0>] (gic_init_bases+0x118/0x2ac)<br>
[<c045cfe0>] (gic_init_bases+0x118/0x2ac) from [<c045d710>] (gic_init_irq+0x78/0xc4)<br>
[<c045d710>] (gic_init_irq+0x78/0xc4) from [<c04595dc>] (init_IRQ+0x1c/0x24)<br>
[<c04595dc>] (init_IRQ+0x1c/0x24) from [<c045871c>] (start_kernel+0x198/0x29c)<br>
[<c045871c>] (start_kernel+0x198/0x29c) from [<00008078>] (0x8078)<br>
---[ end trace 1b75b31a2719ed1c ]---<br>
------------[ cut here ]------------<br>
WARNING: at kernel/irq/irqdomain.c:234 irq_domain_add_legacy+0x84/0x144()<br>
Modules linked in:<br>
[<c0015fd8>] (unwind_backtrace+0x0/0xfc) from [<c0327b30>] (dump_stack+0x20/0x24)<br>
[<c0327b30>] (dump_stack+0x20/0x24) from [<c001fe44>] (warn_slowpath_common+0x5c/0x74)<br>
[<c001fe44>] (warn_slowpath_common+0x5c/0x74) from [<c001fe88>] (warn_slowpath_null+0x2c/0x34)<br>
[<c001fe88>] (warn_slowpath_null+0x2c/0x34) from [<c00757a4>] (irq_domain_add_legacy+0x84/0x144)<br>
[<c00757a4>] (irq_domain_add_legacy+0x84/0x144) from [<c045d000>] (gic_init_bases+0x138/0x2ac)<br>
[<c045d000>] (gic_init_bases+0x138/0x2ac) from [<c045d710>] (gic_init_irq+0x78/0xc4)<br>
[<c045d710>] (gic_init_irq+0x78/0xc4) from [<c04595dc>] (init_IRQ+0x1c/0x24)<br>
[<c04595dc>] (init_IRQ+0x1c/0x24) from [<c045871c>] (start_kernel+0x198/0x29c)<br>
[<c045871c>] (start_kernel+0x198/0x29c) from [<00008078>] (0x8078)<br>
---[ end trace 1b75b31a2719ed1d ]---<br>
------------[ cut here ]------------<br>
WARNING: at arch/arm/common/gic.c:743 gic_init_bases+0x150/0x2ac()<br>
Modules linked in:<br>
[<c0015fd8>] (unwind_backtrace+0x0/0xfc) from [<c0327b30>] (dump_stack+0x20/0x24)<br>
[<c0327b30>] (dump_stack+0x20/0x24) from [<c001fe44>] (warn_slowpath_common+0x5c/0x74)<br>
[<c001fe44>] (warn_slowpath_common+0x5c/0x74) from [<c001fe88>] (warn_slowpath_null+0x2c/0x34)<br>
[<c001fe88>] (warn_slowpath_null+0x2c/0x34) from [<c045d018>] (gic_init_bases+0x150/0x2ac)<br>
[<c045d018>] (gic_init_bases+0x150/0x2ac) from [<c045d710>] (gic_init_irq+0x78/0xc4)<br>
[<c045d710>] (gic_init_irq+0x78/0xc4) from [<c04595dc>] (init_IRQ+0x1c/0x24)<br>
[<c04595dc>] (init_IRQ+0x1c/0x24) from [<c045871c>] (start_kernel+0x198/0x29c)<br>
[<c045871c>] (start_kernel+0x198/0x29c) from [<00008078>] (0x8078)<br>
---[ end trace 1b75b31a2719ed1e ]---<br>
Console: colour dummy device 80x30<br>
Calibrating delay loop... 79.87 BogoMIPS (lpj=399360)<br>
pid_max: default: 32768 minimum: 301<br>
Mount-cache hash table entries: 512<br>
CPU: Testing write buffer coherency: ok<br>
ftrace: allocating 12715 entries in 38 pages<br>
smp_twd: clock not found: -2<br>
Calibrating local timer... 104.76MHz.<br>
Setting up static identity map for 0x32d8e8 - 0x32d944<br>
CPU1: Booted secondary processor<br>
CPU2: Booted secondary processor<br>
CPU3: Booted secondary processor<br>
Brought up 4 CPUs<br>
SMP: Total of 4 processors activated (329.93 BogoMIPS).</font><br>
</tt></font><br>
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