Messages in this thread | | | Date | Mon, 7 Jun 1999 18:16:19 -0400 (EDT) | From | "Steven N. Hirsch" <> | Subject | Re: 2.2.9-ac2 locks solid |
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On Mon, 7 Jun 1999, Ingo Molnar wrote:
> the debugging trace sent by George looks like case 2). Note that case 2) > is _likely_ to cause a stuck TLB IPI because the TLB flush is about the > only kernel thing that actively waits for another CPU to do something, > synchronously. So the 'TLB stuck...' message is just a side-effect, not > the problem itself.
Ingo, et al,
Please note that I, and at least one other person, are seeing lockups from quite a different place in the kernel, e.g.:
>>EIP; c012c033 <free_pages+b7/124> Trace; c012eeeb <sys_open+8b/bc> Trace; c010aaf1 <system_call+3d/44> Trace; c010002b <startup_32+2b/a4> Code; c012c033 <free_pages+b7/124> 00000000 <_EIP>: Code; c012c033 <free_pages+b7/124> 0: f0 0f bb 1a lock btcl %ebx,(%edx) Code; c012c037 <free_pages+bb/124> 4: 19 c0 sbbl %eax,%eax Code; c012c039 <free_pages+bd/124> 6: 85 c0 testl %eax,%eax Code; c012c03b <free_pages+bf/124> 8: 74 33 je 3d <_EIP+0x3d> c012c070 <free_pages+f4/124> Code; c012c03d <free_pages+c1/124> a: 8b 45 f8 movl 0xfffffff8(%ebp),%eax Code; c012c040 <free_pages+c4/124> d: f7 d8 negl %eax Code; c012c042 <free_pages+c6/124> f: 31 f0 xorl %esi,%eax Code; c012c044 <free_pages+c8/124> 11: 8d 04 80 leal (%eax,%eax,4),%eax
More details in my recent posting under related thread..
Steve
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