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SubjectRe: 2.6.21-rc4-mm1
Andrew Morton wrote:
> Temporarily at
>
> http://userweb.kernel.org/~akpm/2.6.21-rc4-mm1/
>
> Will appear later at
>
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21-rc4/2.6.21-rc4-mm1/
>
>
>

[All of the below is from the pre hot-fix runs. The very few results
which are in for the hot-fix runs seem worse if anything. :( All
results should be out on TKO.]

> - Restored the RSDL CPU scheduler (a new version thereof)

Unsure if the above is the culprit but there seems to be a smattering of
BUG's in kernbench from the schedular on several systems, and panics
which do not fully dump out.

elm3b239 is about 2/4 kernbench being the test in progress when we
blammo in both failed tests, elm3b234 doesn't boot at all.


From elm3b239:
------------[ cut here ]------------
kernel BUG at kernel/sched.c:3505!
invalid opcode: 0000 [1] SMP
last sysfs file: devices/pci0000:00/0000:00:00.0/irq
CPU 19
Modules linked in: loop dm_mod md_mod sg
Pid: 59, comm: migration/19 Not tainted 2.6.21-rc4-mm1-autokern1 #1
RIP: 0010:[<ffffffff804924f6>] [<ffffffff804924f6>]
__sched_text_start+0x3a6/0x882
RSP: 0018:ffff810100cefe20 EFLAGS: 00010002
RAX: 000000000000008c RBX: ffff81002b0f64d8 RCX: 000000000000000c
RDX: 0000000000000000 RSI: 000000000000008c RDI: ffff81002b0f6da8
RBP: ffff810100cefeb0 R08: 000000000000008c R09: ffff81002b0f6d98
R10: 0000000000000034 R11: ffffffff8021ab20 R12: ffff81002b0f5a40
R13: 0000000000000002 R14: 000000725eb99ef7 R15: 0000000000000013
FS: 0000000000000000(0000) GS:ffff810100c42bc0(0000) knlGS:0000000000000000
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 00002ba9c431ab70 CR3: 00000001060fc000 CR4: 00000000000006e0
Process migration/19 (pid: 59, threadinfo ffff810100cee000, task
ffff810100ced8e0)
Stack: 0000000000000001 0000000000000001 ffff81010b681e98 ffff810100ced8e0
ffff810100cefe80 ffff810100ceda78 0000000300000000 ffff81010b681e88
ffff81010b681e90 0000000000000286 0000000000000013 0000000000000000
Call Trace:
[<ffffffff80224a00>] migration_thread+0x1b0/0x250
[<ffffffff80224850>] migration_thread+0x0/0x250
[<ffffffff8023c85b>] kthread+0xdb/0x120
[<ffffffff8020a7a8>] child_rip+0xa/0x12
[<ffffffff8023c780>] kthread+0x0/0x120
[<ffffffff8020a79e>] child_rip+0x0/0x12

Code: 0f 0b eb fe 49 8b 94 24 b8 01 00 00 49 8b 84 24 b0 01 00 00
RIP [<ffffffff804924f6>] __sched_text_start+0x3a6/0x882
RSP <ffff810100cefe20>

------------[ cut here ]------------
kernel BUG at kernel/sched.c:3505!
invalid opcode: 0000 [1] SMP
last sysfs file: devices/pci0000:00/0000:00:00.0/irq
CPU 21
Modules linked in: loop dm_mod md_mod sg
Pid: 15583, comm: cc1 Not tainted 2.6.21-rc4-mm1-autokern1 #1
RIP: 0010:[<ffffffff80496686>] [<ffffffff80496686>]
__sched_text_start+0x3a6/0x882
RSP: 0000:ffff81010aca7ee0 EFLAGS: 00010002
RAX: 000000000000008c RBX: ffff81002b111358 RCX: 000000000000000c
RDX: 0000000000000000 RSI: 000000000000008c RDI: ffff81002b111c28
RBP: ffff81010aca7f70 R08: 000000000000008c R09: ffff81002b111c18
R10: 0000000000000034 R11: 0000000000000001 R12: ffff81002b1108c0
R13: 0000000000000002 R14: 0000006cb9bdff1a R15: 0000000000000015
FS: 00002b6ef0bc66d0(0000) GS:ffff810100d02e40(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002b6ef20c1000 CR3: 0000000106e2b000 CR4: 00000000000006e0
Process cc1 (pid: 15583, threadinfo ffff81010aca6000, task ffff810105b03620)
Stack: 0000000000000100 0000000000000100 ffff81010964c148 ffff810105b03620
ffffffff8054c9b7 ffff810105b037c0 0000000b0000000e ffff81010b216d80
0000000000000000 00002b6ef20b7d00 00002b6ef20c1000 0000000000000400
Call Trace:
[<ffffffff80209f17>] retint_careful+0xd/0x21

Code: 0f 0b eb fe 49 8b 94 24 b8 01 00 00 49 8b 84 24 b0 01 00 00
RIP [<ffffffff80496686>] __sched_text_start+0x3a6/0x882
RSP <ffff81010aca7ee0>


From elm3b245:

------------[ cut here ]------------
kernel BUG at kernel/sched.c:3505!
invalid opcode: 0000 [1] SMP
last sysfs file:
CPU 0
Modules linked in:
Pid: 1, comm: init Not tainted 2.6.21-rc4-mm1-autokern1 #1
RIP: 0010:[<ffffffff8049cbb7>] [<ffffffff8049cbb7>]
__sched_text_start+0x377/0x819
RSP: 0018:ffff81010037dee0 EFLAGS: 00010002
RAX: 000000000000008c RBX: 0000000000000002 RCX: 0000000000000000
RDX: 0000000000000034 RSI: 000000000000008c RDI: ffff810002c15210
RBP: ffff81010037df70 R08: 000000000000008c R09: 000000000000000c
R10: ffff810002c15200 R11: ffffffff8020968e R12: ffff810002c14940
R13: 00007fff1da16360 R14: ffff810002c14780 R15: 0000000000000000
FS: 00002b428d88d6d0(0000) GS:ffffffff805af000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000586a48 CR3: 0000000008c2f000 CR4: 00000000000006e0
Process init (pid: 1, threadinfo ffff81010037c000, task ffff810003369450)
Stack: 000003e10059d1b0 ffff81010037df28 ffffffff80276dd3 ffff810003369450
ffff810008313880 0000003727988fe6 ffff8100033695f0 00007fff1da16250
00007fff1da16360 000000000059bb70 ffffffff8020968e ffff81010037df48
Call Trace:
[<ffffffff80276dd3>] generic_file_llseek+0x87/0x96
[<ffffffff8020968e>] system_call+0x7e/0x83
[<ffffffff80207db2>] sys_clone+0x23/0x25
[<ffffffff802096f8>] sysret_careful+0xd/0x10

Code: 0f 0b eb fe 49 8b 96 b8 01 00 00 49 8b 86 b0 01 00 00 be 8c
RIP [<ffffffff8049cbb7>] __sched_text_start+0x377/0x819
RSP <ffff81010037dee0>
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