* 2.6.29.4: softlockup at find_get_page() et al
@ 2009-06-16 11:00 Alexey Dobriyan
2009-06-16 13:08 ` Nick Piggin
0 siblings, 1 reply; 6+ messages in thread
From: Alexey Dobriyan @ 2009-06-16 11:00 UTC (permalink / raw)
To: npiggin, akpm; +Cc: linux-kernel, linux-mm
Happened during overnight run when box was cross-compiling kernel slowly
(only -j7).
Example messages:
[67287.109985] BUG: soft lockup - CPU#0 stuck for 61s! [conf:3980]
[67287.110001] CPU 0:
[67287.110001] Pid: 3980, comm: conf Not tainted 2.6.29.4-x86_64 #1 P5E
[67287.110001] RIP: 0010:[<ffffffff80264902>] [<ffffffff80264902>] find_get_page+0x52/0xb0
[67287.110001] RSP: 0018:ffff8801001eddd8 EFLAGS: 00000246
[67287.110001] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000034
[67287.110001] RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffffe200010a9f40
[67287.110001] RBP: ffffffff8020c3ee R08: ffffe200010a9f48 R09: ffff8800aa798c28
[67287.110001] R10: ffffe200010a9f40 R11: ffffffff802f9480 R12: ffff8800aa798c18
[67287.110001] R13: ffffffff8020c3ee R14: ffffffff802f4e70 R15: 000000000000000c
[67287.110001] FS: 0000000000000000(0000) GS:ffffffff8075b040(0063) knlGS:00000000557116c0
[67287.110001] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
[67287.110001] CR2: 00000000556d9374 CR3: 000000012faa4000 CR4: 00000000000006e0
[67287.110001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[67287.110001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[67287.110001] Call Trace:
[67287.110001] [<ffffffff802648cb>] ? find_get_page+0x1b/0xb0
[67287.110001] [<ffffffff80264bf3>] ? find_lock_page+0x23/0x80
[67287.110001] [<ffffffff80265631>] ? find_or_create_page+0x41/0xc0
[67287.110001] [<ffffffff802f4edd>] ? ext2_make_empty+0x2d/0x1f0
[67287.110001] [<ffffffff802f9556>] ? ext2_mkdir+0xd6/0x170
[67287.110001] [<ffffffff8029b37c>] ? sys_mkdirat+0x11c/0x130
[67287.110001] [<ffffffff802a585a>] ? alloc_fd+0x4a/0x140
[67287.110001] [<ffffffff8022ab14>] ? sysenter_dispatch+0x7/0x2b
[67352.609983] BUG: soft lockup - CPU#0 stuck for 61s! [conf:3980]
[67352.610001] CPU 0:
[67352.610001] Pid: 3980, comm: conf Not tainted 2.6.29.4-x86_64 #1 P5E
[67352.610001] RIP: 0010:[<ffffffff8026dfbe>] [<ffffffff8026dfbe>] put_page+0x2e/0x170
[67352.610001] RSP: 0018:ffff8801001eddc8 EFLAGS: 00000202
[67352.610001] RAX: ffffe200010a9f48 RBX: ffff8800aa798c18 RCX: 0000000000000034
[67352.610001] RDX: 0000000000000000 RSI: ffffe200010a9f40 RDI: ffffe200010a9f40
[67352.610001] RBP: ffffffff8020c3ee R08: fa00000000000000 R09: 8000000000000000
[67352.610001] R10: ffffe200010a9f40 R11: ffffffff802f9480 R12: ffffffff802f4e70
[67352.610001] R13: 000000000000000c R14: ffffffff80299de9 R15: 0000000100000241
[67352.610001] FS: 0000000000000000(0000) GS:ffffffff8075b040(0063) knlGS:00000000557116c0
[67352.610001] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
[67352.610001] CR2: 00000000556d9374 CR3: 000000012faa4000 CR4: 00000000000006e0
[67352.610001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[67352.610001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[67352.610001] Call Trace:
[67352.610001] [<ffffffff80264c42>] ? find_lock_page+0x72/0x80
[67352.610001] [<ffffffff80265631>] ? find_or_create_page+0x41/0xc0
[67352.610001] [<ffffffff802f4edd>] ? ext2_make_empty+0x2d/0x1f0
[67352.610001] [<ffffffff802f9556>] ? ext2_mkdir+0xd6/0x170
[67352.610001] [<ffffffff8029b37c>] ? sys_mkdirat+0x11c/0x130
[67352.610001] [<ffffffff802a585a>] ? alloc_fd+0x4a/0x140
[67352.610001] [<ffffffff8022ab14>] ? sysenter_dispatch+0x7/0x2b
[67418.109983] BUG: soft lockup - CPU#0 stuck for 61s! [conf:3980]
[67418.110001] CPU 0:
[67418.110001] Pid: 3980, comm: conf Not tainted 2.6.29.4-x86_64 #1 P5E
[67418.110001] RIP: 0010:[<ffffffff8026492e>] [<ffffffff8026492e>] find_get_page+0x7e/0xb0
[67418.110001] RSP: 0018:ffff8801001eddd8 EFLAGS: 00000246
[67418.110001] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001
[67418.110001] RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffffe200010a9f40
[67418.110001] RBP: ffffffff8020c3ee R08: ffffe200010a9f48 R09: ffff8800aa798c28
[67418.110001] R10: ffffe200010a9f40 R11: ffffffff802f9480 R12: ffff8800aa798c18
[67418.110001] R13: ffffffff8020c3ee R14: ffffffff802f4e70 R15: 000000000000000c
[67418.110001] FS: 0000000000000000(0000) GS:ffffffff8075b040(0063) knlGS:00000000557116c0
[67418.110001] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
[67418.110001] CR2: 00000000556d9374 CR3: 000000012faa4000 CR4: 00000000000006e0
[67418.110001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[67418.110001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[67418.110001] Call Trace:
[67418.110001] [<ffffffff802648cb>] ? find_get_page+0x1b/0xb0
[67418.110001] [<ffffffff80264bf3>] ? find_lock_page+0x23/0x80
[67418.110001] [<ffffffff80265631>] ? find_or_create_page+0x41/0xc0
[67418.110001] [<ffffffff802f4edd>] ? ext2_make_empty+0x2d/0x1f0
[67418.110001] [<ffffffff802f9556>] ? ext2_mkdir+0xd6/0x170
[67418.110001] [<ffffffff8029b37c>] ? sys_mkdirat+0x11c/0x130
[67418.110001] [<ffffffff802a585a>] ? alloc_fd+0x4a/0x140
[67418.110001] [<ffffffff8022ab14>] ? sysenter_dispatch+0x7/0x2b
...
Then box became unusable:
[90276.999985] BUG: soft lockup - CPU#0 stuck for 61s! [conf:3980]
[90277.000002] CPU 0:
[90277.000002] Pid: 3980, comm: conf Not tainted 2.6.29.4-x86_64 #1 P5E
[90277.000002] RIP: 0010:[<ffffffff80264902>] [<ffffffff80264902>] find_get_page+0x52/0xb0
[90277.000002] RSP: 0018:ffff8801001eddd8 EFLAGS: 00000246
[90277.000002] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000034
[90277.000002] RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffffe200010a9f40
[90277.000002] RBP: ffffffff8020c3ee R08: ffffe200010a9f48 R09: ffff8800aa798c28
[90277.000002] R10: ffffe200010a9f40 R11: ffffffff802f9480 R12: ffff8800aa798c18
[90277.000002] R13: ffffffff8020c28e R14: ffffffff802f4e70 R15: 000000000000000c
[90277.000002] FS: 0000000000000000(0000) GS:ffffffff8075b040(0063) knlGS:00000000557116c0
[90277.000002] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
[90277.000002] CR2: 00000000556d9374 CR3: 000000012faa4000 CR4: 00000000000006e0
[90277.000002] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[90277.000002] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[90277.000002] Call Trace:
[90277.000002] [<ffffffff802648cb>] ? find_get_page+0x1b/0xb0
[90277.000002] [<ffffffff80264bf3>] ? find_lock_page+0x23/0x80
[90277.000002] [<ffffffff80265631>] ? find_or_create_page+0x41/0xc0
[90277.000002] [<ffffffff802f4edd>] ? ext2_make_empty+0x2d/0x1f0
[90277.000002] [<ffffffff802f9556>] ? ext2_mkdir+0xd6/0x170
[90277.000002] [<ffffffff8029b37c>] ? sys_mkdirat+0x11c/0x130
[90277.000002] [<ffffffff802a585a>] ? alloc_fd+0x4a/0x140
[90277.000002] [<ffffffff8022ab14>] ? sysenter_dispatch+0x7/0x2b
[90279.364317] nf_conntrack: table full, dropping packet.
[90282.362418] nf_conntrack: table full, dropping packet.
...
FWIW, userpace is 32-bit, ext2 is used to host source tree, build result
and ccache.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.29.4: softlockup at find_get_page() et al
2009-06-16 11:00 2.6.29.4: softlockup at find_get_page() et al Alexey Dobriyan
@ 2009-06-16 13:08 ` Nick Piggin
2009-06-16 13:14 ` Alexey Dobriyan
2009-07-03 14:03 ` Alexey Dobriyan
0 siblings, 2 replies; 6+ messages in thread
From: Nick Piggin @ 2009-06-16 13:08 UTC (permalink / raw)
To: Alexey Dobriyan; +Cc: akpm, linux-kernel, linux-mm
On Tue, Jun 16, 2009 at 03:00:51PM +0400, Alexey Dobriyan wrote:
> Happened during overnight run when box was cross-compiling kernel slowly
> (only -j7).
>
> Example messages:
>
> [67287.109985] BUG: soft lockup - CPU#0 stuck for 61s! [conf:3980]
> [67287.110001] CPU 0:
> [67287.110001] Pid: 3980, comm: conf Not tainted 2.6.29.4-x86_64 #1 P5E
> [67287.110001] RIP: 0010:[<ffffffff80264902>] [<ffffffff80264902>] find_get_page+0x52/0xb0
> [67287.110001] RSP: 0018:ffff8801001eddd8 EFLAGS: 00000246
> [67287.110001] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000034
> [67287.110001] RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffffe200010a9f40
> [67287.110001] RBP: ffffffff8020c3ee R08: ffffe200010a9f48 R09: ffff8800aa798c28
> [67287.110001] R10: ffffe200010a9f40 R11: ffffffff802f9480 R12: ffff8800aa798c18
> [67287.110001] R13: ffffffff8020c3ee R14: ffffffff802f4e70 R15: 000000000000000c
> [67287.110001] FS: 0000000000000000(0000) GS:ffffffff8075b040(0063) knlGS:00000000557116c0
> [67287.110001] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
> [67287.110001] CR2: 00000000556d9374 CR3: 000000012faa4000 CR4: 00000000000006e0
> [67287.110001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [67287.110001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [67287.110001] Call Trace:
> [67287.110001] [<ffffffff802648cb>] ? find_get_page+0x1b/0xb0
> [67287.110001] [<ffffffff80264bf3>] ? find_lock_page+0x23/0x80
> [67287.110001] [<ffffffff80265631>] ? find_or_create_page+0x41/0xc0
> [67287.110001] [<ffffffff802f4edd>] ? ext2_make_empty+0x2d/0x1f0
> [67287.110001] [<ffffffff802f9556>] ? ext2_mkdir+0xd6/0x170
> [67287.110001] [<ffffffff8029b37c>] ? sys_mkdirat+0x11c/0x130
> [67287.110001] [<ffffffff802a585a>] ? alloc_fd+0x4a/0x140
> [67287.110001] [<ffffffff8022ab14>] ? sysenter_dispatch+0x7/0x2b
> [67352.609983] BUG: soft lockup - CPU#0 stuck for 61s! [conf:3980]
> [67352.610001] CPU 0:
> [67352.610001] Pid: 3980, comm: conf Not tainted 2.6.29.4-x86_64 #1 P5E
> [67352.610001] RIP: 0010:[<ffffffff8026dfbe>] [<ffffffff8026dfbe>] put_page+0x2e/0x170
> [67352.610001] RSP: 0018:ffff8801001eddc8 EFLAGS: 00000202
> [67352.610001] RAX: ffffe200010a9f48 RBX: ffff8800aa798c18 RCX: 0000000000000034
> [67352.610001] RDX: 0000000000000000 RSI: ffffe200010a9f40 RDI: ffffe200010a9f40
> [67352.610001] RBP: ffffffff8020c3ee R08: fa00000000000000 R09: 8000000000000000
> [67352.610001] R10: ffffe200010a9f40 R11: ffffffff802f9480 R12: ffffffff802f4e70
> [67352.610001] R13: 000000000000000c R14: ffffffff80299de9 R15: 0000000100000241
> [67352.610001] FS: 0000000000000000(0000) GS:ffffffff8075b040(0063) knlGS:00000000557116c0
> [67352.610001] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
> [67352.610001] CR2: 00000000556d9374 CR3: 000000012faa4000 CR4: 00000000000006e0
> [67352.610001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [67352.610001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [67352.610001] Call Trace:
> [67352.610001] [<ffffffff80264c42>] ? find_lock_page+0x72/0x80
> [67352.610001] [<ffffffff80265631>] ? find_or_create_page+0x41/0xc0
> [67352.610001] [<ffffffff802f4edd>] ? ext2_make_empty+0x2d/0x1f0
> [67352.610001] [<ffffffff802f9556>] ? ext2_mkdir+0xd6/0x170
> [67352.610001] [<ffffffff8029b37c>] ? sys_mkdirat+0x11c/0x130
> [67352.610001] [<ffffffff802a585a>] ? alloc_fd+0x4a/0x140
> [67352.610001] [<ffffffff8022ab14>] ? sysenter_dispatch+0x7/0x2b
> [67418.109983] BUG: soft lockup - CPU#0 stuck for 61s! [conf:3980]
> [67418.110001] CPU 0:
> [67418.110001] Pid: 3980, comm: conf Not tainted 2.6.29.4-x86_64 #1 P5E
> [67418.110001] RIP: 0010:[<ffffffff8026492e>] [<ffffffff8026492e>] find_get_page+0x7e/0xb0
> [67418.110001] RSP: 0018:ffff8801001eddd8 EFLAGS: 00000246
> [67418.110001] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001
> [67418.110001] RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffffe200010a9f40
> [67418.110001] RBP: ffffffff8020c3ee R08: ffffe200010a9f48 R09: ffff8800aa798c28
> [67418.110001] R10: ffffe200010a9f40 R11: ffffffff802f9480 R12: ffff8800aa798c18
> [67418.110001] R13: ffffffff8020c3ee R14: ffffffff802f4e70 R15: 000000000000000c
> [67418.110001] FS: 0000000000000000(0000) GS:ffffffff8075b040(0063) knlGS:00000000557116c0
> [67418.110001] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
> [67418.110001] CR2: 00000000556d9374 CR3: 000000012faa4000 CR4: 00000000000006e0
> [67418.110001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [67418.110001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [67418.110001] Call Trace:
> [67418.110001] [<ffffffff802648cb>] ? find_get_page+0x1b/0xb0
> [67418.110001] [<ffffffff80264bf3>] ? find_lock_page+0x23/0x80
> [67418.110001] [<ffffffff80265631>] ? find_or_create_page+0x41/0xc0
> [67418.110001] [<ffffffff802f4edd>] ? ext2_make_empty+0x2d/0x1f0
> [67418.110001] [<ffffffff802f9556>] ? ext2_mkdir+0xd6/0x170
> [67418.110001] [<ffffffff8029b37c>] ? sys_mkdirat+0x11c/0x130
> [67418.110001] [<ffffffff802a585a>] ? alloc_fd+0x4a/0x140
> [67418.110001] [<ffffffff8022ab14>] ? sysenter_dispatch+0x7/0x2b
>
> ...
>
> Then box became unusable:
>
> [90276.999985] BUG: soft lockup - CPU#0 stuck for 61s! [conf:3980]
> [90277.000002] CPU 0:
> [90277.000002] Pid: 3980, comm: conf Not tainted 2.6.29.4-x86_64 #1 P5E
> [90277.000002] RIP: 0010:[<ffffffff80264902>] [<ffffffff80264902>] find_get_page+0x52/0xb0
> [90277.000002] RSP: 0018:ffff8801001eddd8 EFLAGS: 00000246
> [90277.000002] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000034
> [90277.000002] RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffffe200010a9f40
> [90277.000002] RBP: ffffffff8020c3ee R08: ffffe200010a9f48 R09: ffff8800aa798c28
> [90277.000002] R10: ffffe200010a9f40 R11: ffffffff802f9480 R12: ffff8800aa798c18
> [90277.000002] R13: ffffffff8020c28e R14: ffffffff802f4e70 R15: 000000000000000c
> [90277.000002] FS: 0000000000000000(0000) GS:ffffffff8075b040(0063) knlGS:00000000557116c0
> [90277.000002] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
> [90277.000002] CR2: 00000000556d9374 CR3: 000000012faa4000 CR4: 00000000000006e0
> [90277.000002] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [90277.000002] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [90277.000002] Call Trace:
> [90277.000002] [<ffffffff802648cb>] ? find_get_page+0x1b/0xb0
> [90277.000002] [<ffffffff80264bf3>] ? find_lock_page+0x23/0x80
> [90277.000002] [<ffffffff80265631>] ? find_or_create_page+0x41/0xc0
> [90277.000002] [<ffffffff802f4edd>] ? ext2_make_empty+0x2d/0x1f0
> [90277.000002] [<ffffffff802f9556>] ? ext2_mkdir+0xd6/0x170
> [90277.000002] [<ffffffff8029b37c>] ? sys_mkdirat+0x11c/0x130
> [90277.000002] [<ffffffff802a585a>] ? alloc_fd+0x4a/0x140
> [90277.000002] [<ffffffff8022ab14>] ? sysenter_dispatch+0x7/0x2b
> [90279.364317] nf_conntrack: table full, dropping packet.
> [90282.362418] nf_conntrack: table full, dropping packet.
> ...
>
> FWIW, userpace is 32-bit, ext2 is used to host source tree, build result
> and ccache.
Thanks. Is it rebooted? It would be interesting to know what other
CPUs are doing (and even what other tasks are doing) if it is
still up.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.29.4: softlockup at find_get_page() et al
2009-06-16 13:08 ` Nick Piggin
@ 2009-06-16 13:14 ` Alexey Dobriyan
2009-06-16 14:22 ` Nick Piggin
2009-07-03 14:03 ` Alexey Dobriyan
1 sibling, 1 reply; 6+ messages in thread
From: Alexey Dobriyan @ 2009-06-16 13:14 UTC (permalink / raw)
To: Nick Piggin; +Cc: akpm, linux-kernel, linux-mm
On Tue, Jun 16, 2009 at 03:08:33PM +0200, Nick Piggin wrote:
> Thanks. Is it rebooted? It would be interesting to know what other
> CPUs are doing (and even what other tasks are doing) if it is
> still up.
It was rebooted, sorry.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.29.4: softlockup at find_get_page() et al
2009-06-16 13:14 ` Alexey Dobriyan
@ 2009-06-16 14:22 ` Nick Piggin
0 siblings, 0 replies; 6+ messages in thread
From: Nick Piggin @ 2009-06-16 14:22 UTC (permalink / raw)
To: Alexey Dobriyan; +Cc: akpm, linux-kernel, linux-mm
On Tue, Jun 16, 2009 at 05:14:54PM +0400, Alexey Dobriyan wrote:
> On Tue, Jun 16, 2009 at 03:08:33PM +0200, Nick Piggin wrote:
> > Thanks. Is it rebooted? It would be interesting to know what other
> > CPUs are doing (and even what other tasks are doing) if it is
> > still up.
>
> It was rebooted, sorry.
Thanks. It is hard to know where it is looping, but I see a put_page
in there which seems to suggest it reached at least the "Has the page
moved" test. But if the stack trace is 100% accurate, then it seems
like it has hit the "Has the page been truncated" part of find_lock_page.
And it is an ext2 dir page. And these pages should not get truncated
unless rmdir. But we can't be in rmdir I think because we are doing a
mkdir.
It would seem like the page is still in the pagecache, but ->mapping
is wrong. But actually that is strange because we should have a
new inode here, so find_get_page should not even find a page in
find_or_create_page. There should be no way for a racing thread to
add a page there either.
I would almost have to suspect hardware or software error causing
random memory scribble. I would definitely be very interested if
you can reproduce (I suspect it won't be reproducable though).
Thanks,
Nick
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.29.4: softlockup at find_get_page() et al
2009-06-16 13:08 ` Nick Piggin
2009-06-16 13:14 ` Alexey Dobriyan
@ 2009-07-03 14:03 ` Alexey Dobriyan
2009-07-06 7:26 ` Nick Piggin
1 sibling, 1 reply; 6+ messages in thread
From: Alexey Dobriyan @ 2009-07-03 14:03 UTC (permalink / raw)
To: Nick Piggin; +Cc: akpm, linux-kernel, linux-mm
On Tue, Jun 16, 2009 at 03:08:33PM +0200, Nick Piggin wrote:
> On Tue, Jun 16, 2009 at 03:00:51PM +0400, Alexey Dobriyan wrote:
> > Happened during overnight run when box was cross-compiling kernel slowly
> > (only -j7).
> >
> > Example messages:
> >
> > [67287.109985] BUG: soft lockup - CPU#0 stuck for 61s! [conf:3980]
> > [67287.110001] CPU 0:
> > [67287.110001] Pid: 3980, comm: conf Not tainted 2.6.29.4-x86_64 #1 P5E
> > [67287.110001] RIP: 0010:[<ffffffff80264902>] [<ffffffff80264902>] find_get_page+0x52/0xb0
> > [67287.110001] RSP: 0018:ffff8801001eddd8 EFLAGS: 00000246
> > [67287.110001] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000034
> > [67287.110001] RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffffe200010a9f40
> > [67287.110001] RBP: ffffffff8020c3ee R08: ffffe200010a9f48 R09: ffff8800aa798c28
> > [67287.110001] R10: ffffe200010a9f40 R11: ffffffff802f9480 R12: ffff8800aa798c18
> > [67287.110001] R13: ffffffff8020c3ee R14: ffffffff802f4e70 R15: 000000000000000c
> > [67287.110001] FS: 0000000000000000(0000) GS:ffffffff8075b040(0063) knlGS:00000000557116c0
> > [67287.110001] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
> > [67287.110001] CR2: 00000000556d9374 CR3: 000000012faa4000 CR4: 00000000000006e0
> > [67287.110001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > [67287.110001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> > [67287.110001] Call Trace:
> > [67287.110001] [<ffffffff802648cb>] ? find_get_page+0x1b/0xb0
> > [67287.110001] [<ffffffff80264bf3>] ? find_lock_page+0x23/0x80
> > [67287.110001] [<ffffffff80265631>] ? find_or_create_page+0x41/0xc0
> > [67287.110001] [<ffffffff802f4edd>] ? ext2_make_empty+0x2d/0x1f0
> > [67287.110001] [<ffffffff802f9556>] ? ext2_mkdir+0xd6/0x170
> > [67287.110001] [<ffffffff8029b37c>] ? sys_mkdirat+0x11c/0x130
> > [67287.110001] [<ffffffff802a585a>] ? alloc_fd+0x4a/0x140
> > [67287.110001] [<ffffffff8022ab14>] ? sysenter_dispatch+0x7/0x2b
memtest has found quite a lot of junk.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.29.4: softlockup at find_get_page() et al
2009-07-03 14:03 ` Alexey Dobriyan
@ 2009-07-06 7:26 ` Nick Piggin
0 siblings, 0 replies; 6+ messages in thread
From: Nick Piggin @ 2009-07-06 7:26 UTC (permalink / raw)
To: Alexey Dobriyan; +Cc: akpm, linux-kernel, linux-mm
On Fri, Jul 03, 2009 at 06:03:29PM +0400, Alexey Dobriyan wrote:
> On Tue, Jun 16, 2009 at 03:08:33PM +0200, Nick Piggin wrote:
> > On Tue, Jun 16, 2009 at 03:00:51PM +0400, Alexey Dobriyan wrote:
> > > Happened during overnight run when box was cross-compiling kernel slowly
> > > (only -j7).
> > >
> > > Example messages:
> > >
> > > [67287.109985] BUG: soft lockup - CPU#0 stuck for 61s! [conf:3980]
> > > [67287.110001] CPU 0:
> > > [67287.110001] Pid: 3980, comm: conf Not tainted 2.6.29.4-x86_64 #1 P5E
> > > [67287.110001] RIP: 0010:[<ffffffff80264902>] [<ffffffff80264902>] find_get_page+0x52/0xb0
> > > [67287.110001] RSP: 0018:ffff8801001eddd8 EFLAGS: 00000246
> > > [67287.110001] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000034
> > > [67287.110001] RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffffe200010a9f40
> > > [67287.110001] RBP: ffffffff8020c3ee R08: ffffe200010a9f48 R09: ffff8800aa798c28
> > > [67287.110001] R10: ffffe200010a9f40 R11: ffffffff802f9480 R12: ffff8800aa798c18
> > > [67287.110001] R13: ffffffff8020c3ee R14: ffffffff802f4e70 R15: 000000000000000c
> > > [67287.110001] FS: 0000000000000000(0000) GS:ffffffff8075b040(0063) knlGS:00000000557116c0
> > > [67287.110001] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
> > > [67287.110001] CR2: 00000000556d9374 CR3: 000000012faa4000 CR4: 00000000000006e0
> > > [67287.110001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > > [67287.110001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> > > [67287.110001] Call Trace:
> > > [67287.110001] [<ffffffff802648cb>] ? find_get_page+0x1b/0xb0
> > > [67287.110001] [<ffffffff80264bf3>] ? find_lock_page+0x23/0x80
> > > [67287.110001] [<ffffffff80265631>] ? find_or_create_page+0x41/0xc0
> > > [67287.110001] [<ffffffff802f4edd>] ? ext2_make_empty+0x2d/0x1f0
> > > [67287.110001] [<ffffffff802f9556>] ? ext2_mkdir+0xd6/0x170
> > > [67287.110001] [<ffffffff8029b37c>] ? sys_mkdirat+0x11c/0x130
> > > [67287.110001] [<ffffffff802a585a>] ? alloc_fd+0x4a/0x140
> > > [67287.110001] [<ffffffff8022ab14>] ? sysenter_dispatch+0x7/0x2b
>
> memtest has found quite a lot of junk.
OK that's good to know (for Linux, maybe not for you!). Thanks
anyway for reporting, it is always helpful.
Thanks,
Nick
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2009-07-06 7:26 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-06-16 11:00 2.6.29.4: softlockup at find_get_page() et al Alexey Dobriyan
2009-06-16 13:08 ` Nick Piggin
2009-06-16 13:14 ` Alexey Dobriyan
2009-06-16 14:22 ` Nick Piggin
2009-07-03 14:03 ` Alexey Dobriyan
2009-07-06 7:26 ` Nick Piggin
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