Re: 2.5.67-mm3: Bad: scheduling while atomic with IEEE1394 then

[Philippe Gramoullé]

Hello,

On Wed, 16 Apr 2003 09:58:36 -0700 (PDT)
Patrick Mochel <[e-mail]> wrote:

  | In short, I think we can remove the locks entirely. We can at least see 
  | what happens.. 

Reverting Andrew's patch and applying yours resulted in not being able to boot:

Captured through the serial console:

Linux version 2.5.67-mm3 (root@test) (gcc version 3.2.3 20030407 (Debian prerelease)) #6 SMP Thu Apr 17 01:26:22 CEST 2003
Video mode to be used for restore is ffff
BIOS-provided physical RAM map: 
 BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
 BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000001ff77000 (usable)
 BIOS-e820: 000000001ff77000 - 000000001ff79000 (ACPI NVS)
 BIOS-e820: 000000001ff79000 - 0000000020000000 (reserved)
 BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
 BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
 BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
511MB LOWMEM available.         
found SMP MP-table at 000fe710  
hm, page 000fe000 reserved twice.
hm, page 000ff000 reserved twice.
hm, page 000f0000 reserved twice.
On node 0 totalpages: 130935    
  DMA zone: 4096 pages, LIFO batch:1
  Normal zone: 126839 pages, LIFO batch:16
  HighMem zone: 0 pages, LIFO batch:1
Intel MultiProcessor Specification v1.4
    Virtual Wire compatibility mode.
OEM ID: DELL     Product ID: WS 530       APIC at: 0xFEE00000
Processor #0 15:1 APIC version 20
Processor #1 15:1 APIC version 20
I/O APIC #2 Version 32 at 0xFEC00000.
Enabling APIC mode:  Cluster.  Using 1 I/O APICs
Processors: 2                   
Building zonelist for node : 0  
Kernel command line: root=/dev/sda2 console=tty1 console=ttyS1,9600n8 elevator=as nmi_watchdog=1
Initializing CPU#0              
PID hash table entries: 2048 (order 11: 16384 bytes)
Detected 1495.331 MHz processor.
Console: colour VGA+ 80x25      
Calibrating delay loop... 2949.12 BogoMIPS
Memory: 513740k/523740k available (2622k kernel code, 9232k reserved, 768k data, 348k init, 0k highmem)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
bad: scheduling while atomic!
Call Trace:
 [<c011cccb>] schedule+0x53b/0x540
 [<c02535f6>] poke_blanked_console+0x56/0x70
 [<c02528c4>] vt_console_print+0x214/0x300
 [<c02369ac>] rwsem_down_write_failed+0xac/0x160
 [<c0105000>] _stext+0x0/0x70
 [<c023611a>] .text.lock.kobject+0x26/0x6c
 [<c0235ea7>] kset_init+0x17/0x30
 [<c023600c>] subsystem_register+0x1c/0x30
 [<c01737ae>] register_filesystem+0xae/0xd0
 [<c0462b35>] sysfs_init+0x15/0x60
 [<c04621bb>] fs_subsys_init+0xb/0x40
 [<c0105000>] _stext+0x0/0x70
 [<c0462440>] mnt_init+0xe0/0x110
 [<c0461fb6>] vfs_caches_init+0xa6/0xd0
 [<c01579a0>] filp_ctor+0x0/0x50
 [<c01579f0>] filp_dtor+0x0/0x40
 [<c0452918>] start_kernel+0x148/0x1d0
 [<c0452500>] unknown_bootoption+0x0/0x110

bad: scheduling while atomic!
Call Trace:
 [<c011cccb>] schedule+0x53b/0x540
 [<c02528c4>] vt_console_print+0x214/0x300
 [<c02369ac>] rwsem_down_write_failed+0xac/0x160
 [<c0105000>] _stext+0x0/0x70
 [<c023611a>] .text.lock.kobject+0x26/0x6c
 [<c0235ea7>] kset_init+0x17/0x30
 [<c023600c>] subsystem_register+0x1c/0x30
 [<c01737ae>] register_filesystem+0xae/0xd0
 [<c0462b35>] sysfs_init+0x15/0x60
 [<c04621bb>] fs_subsys_init+0xb/0x40
 [<c0105000>] _stext+0x0/0x70
 [<c0462440>] mnt_init+0xe0/0x110
 [<c0461fb6>] vfs_caches_init+0xa6/0xd0
 [<c01579a0>] filp_ctor+0x0/0x50
 [<c01579f0>] filp_dtor+0x0/0x40
 [<c0452918>] start_kernel+0x148/0x1d0
 [<c0452500>] unknown_bootoption+0x0/0x110

Unable to handle kernel paging request at virtual address f000ad96
 printing eip:
c011c944
*pde = 00000000
Oops: 0002 [#1]
CPU:    0
EIP:    0060:[<c011c944>]    Not tainted VLI
EFLAGS: 00010046
EIP is at schedule+0x1b4/0x540
eax: 00000000   ebx: 00000001   ecx: 00000000   edx: f000ad1e
esi: ffffffe0   edi: c044df40   ebp: c0451efc   esp: c0451ec4
ds: 007b   es: 007b   ss: 0068
Process swapper (pid: 0, threadinfo=c0450000 task=c03f2c60)
Stack: c03a2aa0 00000001 00000001 c04d0fc0 c03f2ae0 c0451f08 c02528c4 00000000 
       c00bb5c0 0000003a c03f2c60 00000040 c03f2c60 00000002 c0451f2c c02369ac 
       0000003b c0451f28 00000048 00000048 d0001174 c03f2c60 00000002 c03fa7b4 
Call Trace:
 [<c02528c4>] vt_console_print+0x214/0x300
 [<c02369ac>] rwsem_down_write_failed+0xac/0x160
 [<c0105000>] _stext+0x0/0x70
 [<c023611a>] .text.lock.kobject+0x26/0x6c
 [<c0235ea7>] kset_init+0x17/0x30
 [<c023600c>] subsystem_register+0x1c/0x30
 [<c01737ae>] register_filesystem+0xae/0xd0
 [<c0462b35>] sysfs_init+0x15/0x60
 [<c04621bb>] fs_subsys_init+0xb/0x40
 [<c0105000>] _stext+0x0/0x70
 [<c0462440>] mnt_init+0xe0/0x110
 [<c0461fb6>] vfs_caches_init+0xa6/0xd0
 [<c01579a0>] filp_ctor+0x0/0x50
 [<c01579f0>] filp_dtor+0x0/0x40
 [<c0452918>] start_kernel+0x148/0x1d0
 [<c0452500>] unknown_bootoption+0x0/0x110

Code: e0 39 55 d8 8b 48 10 0f 84 05 02 00 00 8b 45 d8 f0 0f b3 48 78 bb 01 00 00 00 89 c8 c1 e0 05 89 98 04 da 44 c0 89 90 00 da 44 c0 <f0> 0f ab 4a 78 8b 42 10 05 00 00 00 40 0f 22 d8 8b 5d d8 8b 82 

I'm back to 2.5.67-mm3 with original patch for now.

Thanks,

Philippe

--

Philippe Gramoullé
[e-mail]
Lycos Europe - NOC France