Description of problem: Version-Release number of selected component (if applicable): How reproducible: Happens every time, from install and when updated to latest kernel. Steps to Reproduce: 1. Install FC6 T2 2. Watch errors flood the dmesg log Actual results: dmesg log full of slab errors e.g. [1] f7c030b8: redzone 1:0x170fc2a5, redzone 2:0x10001000. slab error in verify_redzone_free(): cache `i2o_iop0_msg_inpool': memory outside object was overwritten and [2] DWARF2 unwinder stuck at syscall_call+0x7/0xb Leftover inexact backtrace: Expected results: None of these errors should be happening. Additional info: There are errors from the initial FC6-T2 kernel, and on the current dev kernel. [dave@xxxx ~]$ uname -a Linux xxxx.xxxx.xxxx 2.6.17-1.2558.fc6 #1 SMP Sat Aug 12 19:13:51 EDT 2006 i686 athlon i386 GNU/Linux
Created attachment 134104 [details] dmesg log showing errors and backtraces.
uname -a Linux localhost.localdomain 2.6.17-1.2608.fc6 #1 SMP Thu Aug 31 05:55:45 EDT 2006 i686 athlon i386 GNU/Linux Still present: input: Microsoft Natural� Ergonomic Keyboard 4000 as /class/input/input10 input: USB HID v1.11 Device [Microsoft Natural� Ergonomic Keyboard 4000] on usb-0000:00:10.0-2.1.3 PM: Adding info for No Bus:usbdev2.9_ep82 Slab corruption: (Not tainted) start=f7ea832c, len=2048 Redzone: 0x5a2cf071/0x5a2cf071. Last user: [<c0532450>](release_mem+0x1fd/0x204) [<c04051ee>] show_trace_log_lvl+0x58/0x159 [<c04057ea>] show_trace+0xd/0x10 [<c0405903>] dump_stack+0x19/0x1b [<c046df8a>] check_poison_obj+0x6d/0x172 [<c046e20f>] cache_alloc_debugcheck_after+0x28/0x147 [<c046f6a7>] kmem_cache_alloc+0xa9/0xb5 [<c053223d>] alloc_tty_struct+0x13/0x29 [<c05324da>] init_dev+0x83/0x498 [<c0534e21>] tty_open+0x11b/0x308 [<c047adab>] chrdev_open+0x105/0x13a [<c04719c6>] __dentry_open+0xc8/0x1ab [<c0471b17>] nameidata_to_filp+0x1c/0x2e [<c0471b57>] do_filp_open+0x2e/0x35 [<c0471b9e>] do_sys_open+0x40/0xb5 [<c0471c3f>] sys_open+0x16/0x18 [<c0403faf>] syscall_call+0x7/0xb DWARF2 unwinder stuck at syscall_call+0x7/0xb Leftover inexact backtrace: [<c04057ea>] show_trace+0xd/0x10 [<c0405903>] dump_stack+0x19/0x1b [<c046df8a>] check_poison_obj+0x6d/0x172 [<c046e20f>] cache_alloc_debugcheck_after+0x28/0x147 [<c046f6a7>] kmem_cache_alloc+0xa9/0xb5 [<c053223d>] alloc_tty_struct+0x13/0x29 [<c05324da>] init_dev+0x83/0x498 [<c0534e21>] tty_open+0x11b/0x308 [<c047adab>] chrdev_open+0x105/0x13a [<c04719c6>] __dentry_open+0xc8/0x1ab [<c0471b17>] nameidata_to_filp+0x1c/0x2e [<c0471b57>] do_filp_open+0x2e/0x35 [<c0471b9e>] do_sys_open+0x40/0xb5 [<c0471c3f>] sys_open+0x16/0x18 [<c0403faf>] syscall_call+0x7/0xb 0c0: 6b 6b 6b 6b 6b 6b 6b 6b ff ff ff ff 00 00 00 00 Next obj: start=f7ea8b38, len=2048 Redzone: 0x170fc2a5/0x170fc2a5. Last user: [<c05f2c13>](devinet_sysctl_register+0x2b/0x128) 000: 6c 46 ba c1 01 00 00 00 0b 3d 66 c0 58 f7 ee f7 010: 04 00 00 00 a4 01 00 00 00 00 00 00 b2 23 5f c0 ip6_tables: (C) 2000-2006 Netfilter Core Team Netfilter messages via NETLINK v0.30. ip_conntrack version 2.4 (8192 buckets, 65536 max) - 228 bytes per conntrack ip_tables: (C) 2000-2006 Netfilter Core Team process `sysctl' is using deprecated sysctl (syscall) net.ipv6.neigh.eth0.base_reachable_time; Use net.ipv6.neigh.eth0.base_reachable_time_ms instead. Bluetooth: Core ver 2.10
Modified summary to take account of updated kernel
Created attachment 135456 [details] dmesg log showing slab errors
Modified summary to reflect having tested updated kernel
*** This bug has been marked as a duplicate of 160878 ***