This is the malta branch with the tlb patch from Ralf applied. The LTP test:
-bash-2.05b# shmem_test_06 shmem_test_06: IPC Shared Memory TestSuite program
mykey to uniquely identify the shared memory segment 0x330b035a
...
Detach from the segment using the shmdt subroutine
Release shared memory
causes:
timesys-bsp login: Got mcheck at 802199bc
Cpu 0
$ 0 : 00000000 1000fc00 00000004 00000000
$ 4 : 80401d30 00020004 c0002034 803e5964
$ 8 : 803e598c 00000000 fffffffa 8299f470
$12 : 00000001 000000ff 00000000 00000000
$16 : 80400000 00020004 82d15720 82d15724
$20 : 60100000 803e5964 8337dd38 00000000
$24 : 00000000 8014e6a4
$28 : 82d3e000 82d3fe38 10021a80 8021d314
Hi : d3c9c18f
Lo : 7263fc03
epc : 802199bc ipc_lock+0x14/0x54 Not tainted
ra : 8021d314 shm_close+0x5c/0x11c
Status: 1020fc03 KERNEL EXL IE
Cause : 00800060
PrId : 00018001
Kernel panic - not syncing: Caught Machine Check exception - caused by multiple matching entries in the TLB.
To run this test I have a different config from the default malta.
[gweeks@tanith linux]$ diff -du arch/mips/configs/malta_defconfig .config
--- arch/mips/configs/malta_defconfig 2005-03-18 12:36:52.000000000 -0500
+++ .config 2005-04-07 09:42:47.000000000 -0400
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.12-rc1
-# Fri Mar 18 15:41:40 2005
+# Thu Apr 7 09:42:47 2005
#
CONFIG_MIPS=y
@@ -18,7 +18,7 @@ CONFIG_LOCALVERSION="" CONFIG_SWAP=y CONFIG_SYSVIPC=y -# CONFIG_POSIX_MQUEUE is not set +CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y # CONFIG_AUDIT is not set @@ -158,6 +158,7 @@ # CONFIG_PAGE_SIZE_16KB is not set # CONFIG_PAGE_SIZE_64KB is not set CONFIG_CPU_HAS_PREFETCH=y +CONFIG_BOARD_HAS_MEMCPY_PREFETCH_BUG=y # CONFIG_64BIT_PHYS_ADDR is not set # CONFIG_CPU_ADVANCED is not set CONFIG_CPU_HAS_LLSC=y @@ -187,7 +188,7 @@ # Executable file formats # CONFIG_BINFMT_ELF=y -# CONFIG_BINFMT_MISC is not set +CONFIG_BINFMT_MISC=y CONFIG_TRAD_SIGNALS=y
# @@ -394,8 +395,7 @@ CONFIG_DM_SNAPSHOT=m CONFIG_DM_MIRROR=m CONFIG_DM_ZERO=m -CONFIG_DM_MULTIPATH=m -CONFIG_DM_MULTIPATH_EMC=m +# CONFIG_DM_MULTIPATH is not set
# # Fusion MPT device support @@ -663,7 +663,7 @@ CONFIG_NET_QOS=y CONFIG_NET_ESTIMATOR=y CONFIG_NET_CLS=y -CONFIG_NET_CLS_BASIC=m +# CONFIG_NET_CLS_BASIC is not set CONFIG_NET_CLS_TCINDEX=m CONFIG_NET_CLS_ROUTE4=m CONFIG_NET_CLS_ROUTE=y @@ -1006,10 +1006,13 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_DEVFS_FS is not set +CONFIG_DEVFS_FS=y +# CONFIG_DEVFS_MOUNT is not set +# CONFIG_DEVFS_DEBUG is not set CONFIG_DEVPTS_FS_XATTR=y CONFIG_DEVPTS_FS_SECURITY=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y +# CONFIG_TMPFS_XATTR is not set # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y
@@ -1138,7 +1141,7 @@ CONFIG_CRYPTO_SHA256=m CONFIG_CRYPTO_SHA512=m CONFIG_CRYPTO_WP512=m -CONFIG_CRYPTO_TGR192=m +# CONFIG_CRYPTO_TGR192 is not set CONFIG_CRYPTO_DES=m CONFIG_CRYPTO_BLOWFISH=m CONFIG_CRYPTO_TWOFISH=m [gweeks@tanith linux]$
