David S. Miller wrote:
> We're slightly violating that in the new batched TLB flushing 
> code.  So it's worth trying the patch below out.
> 
> This goes on top of the membar patch, and the UltraSPARC-III 
> fix for the membar patch.  If there are some rejects, they'll 
> be minor and easy to fix up.
> 
> Let me know if this patch makes any difference.

It makes a difference alright.  My machine craters in the crashme after
about 10 minutes.

locked so hard I can't even sysreq umount/sync/reboot

I've enclosed the cpuinfo and dmesg output from bootup.

--- Begin Message ---
cpu             : TI UltraSparc II  (BlackBird)
fpu             : UltraSparc II integrated FPU
promlib         : Version 3 Revision 25
prom            : 3.25.0
type            : sun4u
ncpus probed    : 2
ncpus active    : 2
Cpu0Bogo        : 587.77
Cpu0ClkTck      : 0000000011a4c1ac
Cpu1Bogo        : 587.77
Cpu1ClkTck      : 0000000011a4c1ac
MMU Type        : Spitfire
State:
CPU0:           online
CPU1:           online

--- End Message ---
--- Begin Message ---
PROMLIB: Sun IEEE Boot Prom 3.25.0 1999/12/03 11:35
Linux version 2.6.12.1 ([EMAIL PROTECTED]) (gcc version 3.3.5 (Gentoo Linux 
3.3.5)) #2 SMP Thu Jul 7 08:07:09 AKDT 2005
ARCH: SUN4U
Ethernet address: 08:00:20:82:46:7a
On node 0 totalpages: 261609
  DMA zone: 261609 pages, LIFO batch:15
  Normal zone: 0 pages, LIFO batch:1
  HighMem zone: 0 pages, LIFO batch:1
Built 1 zonelists
Kernel command line: root=/dev/sdb1 ro devfs=nomount
PID hash table entries: 4096 (order: 12, 131072 bytes)
Console: colour dummy device 80x25
Dentry cache hash table entries: 262144 (order: 8, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 7, 1048576 bytes)
Memory: 2074592k available (2128k kernel code, 816k data, 152k init) 
[fffff80000000000,000000007ff2e000]
Calibrating delay loop... 587.77 BogoMIPS (lpj=293888)
Security Framework v1.0.0 initialized
Capability LSM initialized
Mount-cache hash table entries: 512
Calibrating delay loop... 587.77 BogoMIPS (lpj=293888)
CPU 1: synchronized TICK with master CPU (last diff -6 cycles,maxerr 523 cycles)
Brought up 2 CPUs
Total of 2 processors activated (1175.55 BogoMIPS).
CPU0 attaching sched-domain:
 domain 0: span 3
  groups: 1 2
CPU1 attaching sched-domain:
 domain 0: span 3
  groups: 2 1
NET: Registered protocol family 16
SCSI subsystem initialized
SYSIO: UPA portID 1f, at 000001fe00000000
sbus0: Clock 25.0 MHz
dma0: HME DVMA gate array 
Initializing Cryptographic API
Console: switching to colour frame buffer device 160x64
ffb: FFB at 000001fc00000000 type 8 DAC 10
SunZilog: 2 chips.
zs2 at 0x000001fff1000004 (irq = 12,7e8) is a SunZilog
zs3 at 0x000001fff1000000 (irq = 12,7e8) is a SunZilog
ttyS0 at MMIO 0x0 (irq = 7475840) is a SunZilog
ttyS1 at MMIO 0x0 (irq = 7475840) is a SunZilog
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
esp0: IRQ 4,7e0 SCSI ID 7 Clk 40MHz CCYC=25000 CCF=8 TOut 167 NCR53C9XF(espfast)
ESP: Total of 1 ESP hosts found, 1 actually in use.
scsi0 : Sparc ESP366-HME
  Vendor: SEAGATE   Model: ST336706LC        Rev: 0108
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: SEAGATE   Model: ST336704LSUN36G   Rev: 0326
  Type:   Direct-Access                      ANSI SCSI revision: 03
  Vendor: TOSHIBA   Model: XM-5401TASUN4XCD  Rev: 1036
  Type:   CD-ROM                             ANSI SCSI revision: 02
esp0: target 0 [period 100ns offset 15 20.00MHz FAST-WIDE SCSI-II]
SCSI device sda: 71687370 512-byte hdwr sectors (36704 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 71687370 512-byte hdwr sectors (36704 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3 sda4
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
esp0: target 1 [period 100ns offset 15 20.00MHz FAST-WIDE SCSI-II]
SCSI device sdb: 71132959 512-byte hdwr sectors (36420 MB)
SCSI device sdb: drive cache: write through
SCSI device sdb: 71132959 512-byte hdwr sectors (36420 MB)
SCSI device sdb: drive cache: write through
 sdb: sdb1 sdb2 sdb3 sdb4
Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0
esp0: target 6 asynchronous
sr0: scsi-1 drive
Uniform CD-ROM driver Revision: 3.20
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 6, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0,  type 0
Attached scsi generic sg1 at scsi0, channel 0, id 1, lun 0,  type 0
Attached scsi generic sg2 at scsi0, channel 0, id 6, lun 0,  type 5
rtc_sun_init: Registered Mostek RTC driver.
mice: PS/2 mouse device common for all mice
md: raid1 personality registered as nr 3
md: multipath personality registered as nr 7
md: md driver 0.90.1 MAX_MD_DEVS=256, MD_SB_DISKS=27
device-mapper: 4.4.0-ioctl (2005-01-12) initialised: [EMAIL PROTECTED]
NET: Registered protocol family 26
NET: Registered protocol family 2
IP: routing cache hash table of 16384 buckets, 256Kbytes
TCP established hash table entries: 524288 (order: 10, 8388608 bytes)
TCP bind hash table entries: 65536 (order: 7, 1048576 bytes)
TCP: Hash tables configured (established 524288 bind 65536)
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 15
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
input: Sun Type 5 keyboard on zs/serio0
Adding 1952944k swap on /dev/sdb2.  Priority:-1 extents:1
EXT3 FS on sdb1, internal journal
sunhme.c:v2.02 8/24/03 David S. Miller ([email protected])
eth0: HAPPY MEAL (SBUS) 10/100baseT Ethernet 08:00:20:82:46:7a 
eth1: Quattro HME slot 0 (SBUS) 10/100baseT Ethernet 08:00:20:a1:b6:c0 
eth2: Quattro HME slot 1 (SBUS) 10/100baseT Ethernet 08:00:20:a1:b6:c1 
eth3: Quattro HME slot 2 (SBUS) 10/100baseT Ethernet 08:00:20:a1:b6:c2 
eth4: Quattro HME slot 3 (SBUS) 10/100baseT Ethernet 08:00:20:a1:b6:c3 
input: Sun Mouse on zs/serio1
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sdb4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
eth0: Link is up using internal transceiver at 100Mb/s, Full Duplex.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.

--- End Message ---

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