On 10/17/2012 11:24 PM, Gilles Chanteperdrix wrote:
On 10/18/2012 12:11 AM, Jeff Webb wrote:
On 10/16/2012 02:04 AM, Gilles Chanteperdrix wrote:
On 10/16/2012 12:52 AM, Jeff Webb wrote:
I'm back to trying to get Xenomai running on a dual 6-core Intel
X5650 desktop machine. I reported my previous attempts a few
months ago:
On ubuntu 10.04 with 2.6.38.8:
http://www.xenomai.org/pipermail/xenomai/2012-July/000546.html
On ubuntu 10.04 with 3.2.21:
http://www.xenomai.org/pipermail/xenomai/2012-July/000577.html
I am now using ubuntu 12.04 instead of 10.04, and I'm using the
xenomai-2.6.git branch. I am still not having any success. The
kernel boots, but hangs as the GUI login box is coming up. This
is similar to what happened under ubuntu 10.04/3.2.21, but the
call trace seems a little different. I have attached my kernel
config and the console output, which was captured via a serial
connection. This exact kernel package seems to run fine (with
very limited testing) on a 4-core Intel X9650 desktop machine
running the same OS, for what it's worth. Any help in debugging
this would be appreciated. What's my next step?
I am afraid that is another known issue fixed in the 3.4 branch.
Please try the I-pipe git; git://git.denx.de, branch core-3.4.
Thanks again, Gilles.
I just rebuilt the kernel using the core-3.4 branch of ipipe.git with
xenomai-2.6.git. I started with the same kernel config as before and
then disabled a few drivers to get everything to compile without
errors.
If you do not need to disable these drivers to compile the kernel
without Xenomai, then it is not normal, please be more specific.
I started with a 3.2-series kernel config (posted earlier) that compiled with
Xenomai. I then copied that config over into the ipipe-core-3.4 build
directory before running menuconfig. When I tried to compile the kernel, I
encountered some section mismatch errors. To get those to go away, I ended up
disabling the following options:
# Device Drivers
# GPIO Support
# Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831)...
# USB Support
# USB Gadget Support
# Staging drivers
# Data acquisition support (comedi)
It wasn't quite clear to me which comedi module was giving me trouble, so I
disabled all of it, although it probably wasn't necessary. I'm pretty sure
that these problems were a result of migrating my kernel config from 3.2 to
3.4, and don't have anything to do with Xenomai. I did not try to compile a
vanilla 3.4 kernel, so I can't be certain. I apologize for the confusion. I
only mentioned that so you would know that the config was very slightly
different from what I posted last time.
The system still crashes, but now it seems to happen several
seconds after the login box has appeared. The console output is
shown below.
This does not look like the same issue, right? As usual, could you
disassemble __ipipe_dispatch_irq, or run addr2line for the error address
(0xffffffff810ac055)?
It appears to be a different issue. Since I have a bzImage in my boot
directory, I ran:
addr2line -i -e vmlinux ffffffff810ac055
on the vmlinux file I found in my kernel build directory. I'm assuming that is the right thing to do. Here is the result:
linux-3.4.6-ipipe-core-3.4.git.2012.10.09/include/linux/ipipe.h:342
linux-3.4.6-ipipe-core-3.4.git.2012.10.09/kernel/ipipe/core.c:1211
The code looks like this:
ipipe.h:
static inline int ipipe_chained_irq_p(struct irq_desc *desc)
{
void __ipipe_chained_irq(unsigned irq, struct irq_desc *desc);
--> return desc->handle_irq == __ipipe_chained_irq;
}
core.c:
if (unlikely(irq >= NR_IRQS)) {
desc = NULL;
chained_irq = 0;
} else {
desc = irq_to_desc(irq);
--> chained_irq = ipipe_chained_irq_p(desc);
}
Here is the output of:
objdump -drS vmlinux --start-address=0xffffffff810ac020
ffffffff810ac020 <__ipipe_dispatch_irq>:
ffffffff810ac020: 55 push %rbp
ffffffff810ac021: 48 89 e5 mov %rsp,%rbp
ffffffff810ac024: 48 83 ec 40 sub $0x40,%rsp
ffffffff810ac028: 81 ff ff 40 00 00 cmp $0x40ff,%edi
ffffffff810ac02e: 48 89 5d d8 mov %rbx,-0x28(%rbp)
ffffffff810ac032: 4c 89 65 e0 mov %r12,-0x20(%rbp)
ffffffff810ac036: 89 fb mov %edi,%ebx
ffffffff810ac038: 4c 89 6d e8 mov %r13,-0x18(%rbp)
ffffffff810ac03c: 4c 89 75 f0 mov %r14,-0x10(%rbp)
ffffffff810ac040: 41 89 f4 mov %esi,%r12d
ffffffff810ac043: 4c 89 7d f8 mov %r15,-0x8(%rbp)
ffffffff810ac047: 0f 87 25 02 00 00 ja ffffffff810ac272
<__ipipe_dispatch_irq+0x252>
ffffffff810ac04d: 45 31 f6 xor %r14d,%r14d
ffffffff810ac050: e8 cb 4b ff ff callq ffffffff810a0c20
<irq_to_desc>
ffffffff810ac055: 48 81 b8 80 00 00 00 cmpq
$0xffffffff810a3cc0,0x80(%rax)
ffffffff810ac05c: c0 3c 0a 81
ffffffff810ac060: 41 0f 94 c6 sete %r14b
ffffffff810ac064: 41 f6 c4 01 test $0x1,%r12b
ffffffff810ac068: 41 89 dd mov %ebx,%r13d
ffffffff810ac06b: 75 38 jne ffffffff810ac0a5
<__ipipe_dispatch_irq+0x85>
ffffffff810ac06d: 48 8b 0d 0c 92 97 00 mov 0x97920c(%rip),%rcx #
ffffffff81a25280 <ipipe_head_domain>
ffffffff810ac074: 49 8d 55 01 lea 0x1(%r13),%rdx
ffffffff810ac078: 48 c7 c6 80 88 c6 81 mov $0xffffffff81c68880,%rsi
ffffffff810ac07f: 48 c1 e2 06 shl $0x6,%rdx
ffffffff810ac083: f6 04 11 01 testb $0x1,(%rcx,%rdx,1)
ffffffff810ac087: 48 0f 44 ce cmove %rsi,%rcx
ffffffff810ac08b: 48 8b 54 11 08 mov 0x8(%rcx,%rdx,1),%rdx
ffffffff810ac090: 48 85 d2 test %rdx,%rdx
ffffffff810ac093: 74 07 je ffffffff810ac09c
<__ipipe_dispatch_irq+0x7c>
ffffffff810ac095: 48 89 c6 mov %rax,%rsi
ffffffff810ac098: 89 df mov %ebx,%edi
ffffffff810ac09a: ff d2 callq *%rdx
ffffffff810ac09c: 45 85 f6 test %r14d,%r14d
ffffffff810ac09f: 0f 85 7b 01 00 00 jne ffffffff810ac220
<__ipipe_dispatch_irq+0x200>
ffffffff810ac0a5: 49 c7 c6 90 15 05 00 mov $0x51590,%r14
ffffffff810ac0ac: 65 48 8b 14 25 b0 cc mov %gs:0xccb0,%rdx
ffffffff810ac0b3: 00 00
ffffffff810ac0b5: 4c 89 f0 mov %r14,%rax
ffffffff810ac0b8: 4c 8b 3c 02 mov (%rdx,%rax,1),%r15
ffffffff810ac0bc: 49 8d 45 01 lea 0x1(%r13),%rax
ffffffff810ac0c0: 48 c1 e0 06 shl $0x6,%rax
ffffffff810ac0c4: 49 8b bf 98 1c 02 00 mov 0x21c98(%r15),%rdi
ffffffff810ac0cb: f6 04 07 02 testb $0x2,(%rdi,%rax,1)
ffffffff810ac0cf: 0f 85 e2 00 00 00 jne ffffffff810ac1b7
<__ipipe_dispatch_irq+0x197>
ffffffff810ac0d5: 48 8b 3d a4 91 97 00 mov 0x9791a4(%rip),%rdi #
ffffffff81a25280 <ipipe_head_domain>
ffffffff810ac0dc: 48 81 ff 80 88 c6 81 cmp $0xffffffff81c68880,%rdi
ffffffff810ac0e3: 48 8b 04 07 mov (%rdi,%rax,1),%rax
ffffffff810ac0e7: 0f 84 ca 00 00 00 je ffffffff810ac1b7
<__ipipe_dispatch_irq+0x197>
ffffffff810ac0ed: a8 01 test $0x1,%al
ffffffff810ac0ef: 0f 84 bb 00 00 00 je ffffffff810ac1b0
<__ipipe_dispatch_irq+0x190>
ffffffff810ac0f5: 41 83 e4 02 and $0x2,%r12d
ffffffff810ac0f9: 0f 85 7d 01 00 00 jne ffffffff810ac27c
<__ipipe_dispatch_irq+0x25c>
ffffffff810ac0ff: 49 c7 c4 e8 f8 02 00 mov $0x2f8e8,%r12
ffffffff810ac106: 49 01 d4 add %rdx,%r12
ffffffff810ac109: 49 8b 0c 24 mov (%r12),%rcx
ffffffff810ac10d: 49 8b 84 24 98 1c 02 mov 0x21c98(%r12),%rax
ffffffff810ac114: 00
ffffffff810ac115: 83 e1 01 and $0x1,%ecx
ffffffff810ac118: 0f 85 6a 01 00 00 jne ffffffff810ac288
<__ipipe_dispatch_irq+0x268>
ffffffff810ac11e: 4d 39 fc cmp %r15,%r12
ffffffff810ac121: 74 0f je ffffffff810ac132
<__ipipe_dispatch_irq+0x112>
ffffffff810ac123: 48 c7 c1 40 dc 00 00 mov $0xdc40,%rcx
ffffffff810ac12a: 4c 89 a4 0a 50 39 04 mov %r12,0x43950(%rdx,%rcx,1)
ffffffff810ac131: 00
ffffffff810ac132: 4b 83 84 ec 98 10 00 addq $0x1,0x1098(%r12,%r13,8)
ffffffff810ac139: 00 01
ffffffff810ac13b: 41 0f ba 2c 24 00 btsl $0x0,(%r12)
ffffffff810ac141: 49 83 c5 01 add $0x1,%r13
ffffffff810ac145: 89 df mov %ebx,%edi
ffffffff810ac147: 49 c1 e5 06 shl $0x6,%r13
ffffffff810ac14b: 49 01 c5 add %rax,%r13
ffffffff810ac14e: 49 8b 75 18 mov 0x18(%r13),%rsi
ffffffff810ac152: 48 89 45 c8 mov %rax,-0x38(%rbp)
ffffffff810ac156: 41 ff 55 10 callq *0x10(%r13)
ffffffff810ac15a: fa cli
ffffffff810ac15b: 41 0f ba 34 24 00 btrl $0x0,(%r12)
ffffffff810ac161: 65 48 8b 0c 25 b0 cc mov %gs:0xccb0,%rcx
ffffffff810ac168: 00 00
ffffffff810ac16a: 4e 3b 24 31 cmp (%rcx,%r14,1),%r12
ffffffff810ac16e: 48 8b 45 c8 mov -0x38(%rbp),%rax
ffffffff810ac172: 75 18 jne ffffffff810ac18c
<__ipipe_dispatch_irq+0x16c>
ffffffff810ac174: 4d 39 fc cmp %r15,%r12
ffffffff810ac177: 0f 84 e3 00 00 00 je ffffffff810ac260
<__ipipe_dispatch_irq+0x240>
ffffffff810ac17d: 48 c7 c2 40 dc 00 00 mov $0xdc40,%rdx
ffffffff810ac184: 4c 89 bc 11 50 39 04 mov %r15,0x43950(%rcx,%rdx,1)
ffffffff810ac18b: 00
ffffffff810ac18c: 48 89 c7 mov %rax,%rdi
ffffffff810ac18f: e8 3c fb ff ff callq ffffffff810abcd0
<__ipipe_do_sync_pipeline>
ffffffff810ac194: 0f 1f 40 00 nopl 0x0(%rax)
ffffffff810ac198: 48 8b 5d d8 mov -0x28(%rbp),%rbx
ffffffff810ac19c: 4c 8b 65 e0 mov -0x20(%rbp),%r12
ffffffff810ac1a0: 4c 8b 6d e8 mov -0x18(%rbp),%r13
ffffffff810ac1a4: 4c 8b 75 f0 mov -0x10(%rbp),%r14
ffffffff810ac1a8: 4c 8b 7d f8 mov -0x8(%rbp),%r15
ffffffff810ac1ac: c9 leaveq
ffffffff810ac1ad: c3 retq
ffffffff810ac1ae: 66 90 xchg %ax,%ax
ffffffff810ac1b0: 48 c7 c7 80 88 c6 81 mov $0xffffffff81c68880,%rdi
ffffffff810ac1b7: 89 de mov %ebx,%esi
ffffffff810ac1b9: e8 42 ec ff ff callq ffffffff810aae00
<__ipipe_set_irq_pending>
ffffffff810ac1be: 41 83 e4 02 and $0x2,%r12d
ffffffff810ac1c2: 75 d4 jne ffffffff810ac198
<__ipipe_dispatch_irq+0x178>
ffffffff810ac1c4: 65 48 8b 14 25 b0 cc mov %gs:0xccb0,%rdx
ffffffff810ac1cb: 00 00
ffffffff810ac1cd: 4c 89 f0 mov %r14,%rax
ffffffff810ac1d0: 48 8b 04 02 mov (%rdx,%rax,1),%rax
ffffffff810ac1d4: 48 81 b8 98 1c 02 00 cmpq
$0xffffffff81c68880,0x21c98(%rax)
ffffffff810ac1db: 80 88 c6 81
ffffffff810ac1df: 74 0f je ffffffff810ac1f0
<__ipipe_dispatch_irq+0x1d0>
ffffffff810ac1e1: 48 c7 c0 e8 f8 02 00 mov $0x2f8e8,%rax
ffffffff810ac1e8: 48 83 7c 10 08 00 cmpq $0x0,0x8(%rax,%rdx,1)
ffffffff810ac1ee: 74 a8 je ffffffff810ac198
<__ipipe_dispatch_irq+0x178>
ffffffff810ac1f0: 65 48 8b 04 25 b0 cc mov %gs:0xccb0,%rax
ffffffff810ac1f7: 00 00
ffffffff810ac1f9: 4a 8b 14 30 mov (%rax,%r14,1),%rdx
ffffffff810ac1fd: 48 8b 3d 7c 90 97 00 mov 0x97907c(%rip),%rdi #
ffffffff81a25280 <ipipe_head_domain>
ffffffff810ac204: 48 3b ba 98 1c 02 00 cmp 0x21c98(%rdx),%rdi
ffffffff810ac20b: 74 2b je ffffffff810ac238
<__ipipe_dispatch_irq+0x218>
ffffffff810ac20d: e8 be fa ff ff callq ffffffff810abcd0
<__ipipe_do_sync_pipeline>
ffffffff810ac212: e9 81 ff ff ff jmpq ffffffff810ac198
<__ipipe_dispatch_irq+0x178>
ffffffff810ac217: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1)
ffffffff810ac21e: 00 00
ffffffff810ac220: 41 83 e4 02 and $0x2,%r12d
ffffffff810ac224: 49 c7 c6 90 15 05 00 mov $0x51590,%r14
ffffffff810ac22b: 74 c3 je ffffffff810ac1f0
<__ipipe_dispatch_irq+0x1d0>
ffffffff810ac22d: e9 66 ff ff ff jmpq ffffffff810ac198
<__ipipe_dispatch_irq+0x178>
ffffffff810ac232: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
ffffffff810ac238: 48 63 0f movslq (%rdi),%rcx
ffffffff810ac23b: 48 c7 c2 40 dc 00 00 mov $0xdc40,%rdx
ffffffff810ac242: 48 01 d0 add %rdx,%rax
ffffffff810ac245: 48 01 c8 add %rcx,%rax
ffffffff810ac248: 48 8b 00 mov (%rax),%rax
ffffffff810ac24b: a8 01 test $0x1,%al
ffffffff810ac24d: 0f 85 45 ff ff ff jne ffffffff810ac198
<__ipipe_dispatch_irq+0x178>
ffffffff810ac253: e8 08 f9 ff ff callq ffffffff810abb60
<__ipipe_do_sync_stage>
ffffffff810ac258: e9 3b ff ff ff jmpq ffffffff810ac198
<__ipipe_dispatch_irq+0x178>
ffffffff810ac25d: 0f 1f 00 nopl (%rax)
ffffffff810ac260: 49 83 7c 24 08 00 cmpq $0x0,0x8(%r12)
ffffffff810ac266: 0f 84 2c ff ff ff je ffffffff810ac198
<__ipipe_dispatch_irq+0x178>
ffffffff810ac26c: 0f 1f 40 00 nopl 0x0(%rax)
ffffffff810ac270: eb e1 jmp ffffffff810ac253
<__ipipe_dispatch_irq+0x233>
ffffffff810ac272: 45 31 f6 xor %r14d,%r14d
ffffffff810ac275: 31 c0 xor %eax,%eax
ffffffff810ac277: e9 e8 fd ff ff jmpq ffffffff810ac064
<__ipipe_dispatch_irq+0x44>
ffffffff810ac27c: 89 de mov %ebx,%esi
ffffffff810ac27e: e8 7d eb ff ff callq ffffffff810aae00
<__ipipe_set_irq_pending>
ffffffff810ac283: e9 10 ff ff ff jmpq ffffffff810ac198
<__ipipe_dispatch_irq+0x178>
ffffffff810ac288: 89 de mov %ebx,%esi
ffffffff810ac28a: 48 89 c7 mov %rax,%rdi
ffffffff810ac28d: e8 6e eb ff ff callq ffffffff810aae00
<__ipipe_set_irq_pending>
ffffffff810ac292: e9 01 ff ff ff jmpq ffffffff810ac198
<__ipipe_dispatch_irq+0x178>
ffffffff810ac297: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1)
ffffffff810ac29e: 00 00
Thanks,
Jeff
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