* [uml-devel] 2.6.15-rc1 Badness in handle_page_fault
@ 2006-01-16 20:50 Antoine Martin
2006-01-16 23:54 ` Jeff Dike
0 siblings, 1 reply; 5+ messages in thread
From: Antoine Martin @ 2006-01-16 20:50 UTC (permalink / raw)
To: UML devel
Found these in a guest running 2.6.15-rc1.
Note sure this is relevant anymore, but here it is anyway:
[45512066.140000] Badness in handle_page_fault at
arch/um/kernel/trap_kern.c:101
[45512066.140000] a52ebb90: [<a0022b4e>] handle_page_fault+0x2ae/0x2c0
[45512066.140000] a52ebbbc: [<a0022e59>] segv+0x1b9/0x320
[45512066.140000] a52ebbdc: [<a0058de1>] activate_task+0x71/0x90
[45512066.140000] a52ebc04: [<a004e76d>] wait_stub_done+0x5d/0x170
[45512066.140000] a52ebc24: [<a00a44c2>] filp_close+0x52/0x90
[45512066.140000] a52ebc3c: [<a00a4573>] sys_close+0x73/0x80
[45512066.140000] a52ebc54: [<a002732e>] handle_syscall+0x12e/0x1c0
[45512066.140000] a52ebc6c: [<a0022c1f>] segv_handler+0xbf/0x140
[45512066.140000] a52ebc94: [<a004f961>] user_signal+0x51/0x80
[45512066.140000] a52ebca8: [<a004f636>] userspace+0x1e6/0x3a0
[45512066.140000] a52ebd08: [<a0026f12>] fork_handler+0xd2/0x100
[45512066.140000] a52ebd5c: [<a0462f81>] kill+0x11/0x20
[45512066.140000]
[45512066.830000] load_TLS(O_FORCE) in fork_handler returned -2
[45512067.820000] Badness in handle_page_fault at
arch/um/kernel/trap_kern.c:101
[45512067.820000] a52ebb90: [<a0022b4e>] handle_page_fault+0x2ae/0x2c0
[45512067.820000] a52ebbbc: [<a0022e59>] segv+0x1b9/0x320
[45512067.820000] a52ebbe8: [<a00c4a32>] mntput_no_expire+0x22/0x90
[45512067.820000] a52ebc04: [<a004e76d>] wait_stub_done+0x5d/0x170
[45512067.820000] a52ebc24: [<a00a44c2>] filp_close+0x52/0x90
[45512067.820000] a52ebc3c: [<a00a4573>] sys_close+0x73/0x80
[45512067.820000] a52ebc54: [<a002732e>] handle_syscall+0x12e/0x1c0
[45512067.820000] a52ebc6c: [<a0022c1f>] segv_handler+0xbf/0x140
[45512067.820000] a52ebc94: [<a004f961>] user_signal+0x51/0x80
[45512067.820000] a52ebca8: [<a004f636>] userspace+0x1e6/0x3a0
[45512067.820000] a52ebd08: [<a0026f12>] fork_handler+0xd2/0x100
[45512067.820000] a52ebd5c: [<a0462f81>] kill+0x11/0x20
[45512067.820000]
[45512068.490000] load_TLS(O_FORCE) in fork_handler returned -2
[45512070.120000] load_TLS(O_FORCE) in fork_handler returned -2
[45512070.890000] load_TLS(O_FORCE) in fork_handler returned -2
[45512070.890000] load_TLS(O_FORCE) in fork_handler returned -2
[45512073.140000] load_TLS(O_FORCE) in fork_handler returned -2
[45512073.140000] load_TLS(O_FORCE) in fork_handler returned -2
[45512074.110000] load_TLS(O_FORCE) in fork_handler returned -2
[45512075.100000] load_TLS(O_FORCE) in fork_handler returned -2
[45512075.890000] load_TLS(O_FORCE) in fork_handler returned -2
[45512080.480000] load_TLS(O_FORCE) in fork_handler returned -2
[45512080.480000] load_TLS(O_FORCE) in fork_handler returned -2
[45512082.000000] load_TLS(O_FORCE) in fork_handler returned -2
[45512082.230000] load_TLS(O_FORCE) in fork_handler returned -2
[45512091.260000] load_TLS(O_FORCE) in fork_handler returned -2
[45512097.510000] load_TLS(O_FORCE) in fork_handler returned -2
[45512097.590000] load_TLS(O_FORCE) in fork_handler returned -2
[45512097.590000] load_TLS(O_FORCE) in fork_handler returned -2
[45512103.120000] load_TLS(O_FORCE) in fork_handler returned -2
[45512104.320000] load_TLS(O_FORCE) in fork_handler returned -2
[45512109.940000] load_TLS(O_FORCE) in fork_handler returned -2
[45512109.940000] load_TLS(O_FORCE) in fork_handler returned -2
[45512109.940000] load_TLS(O_FORCE) in fork_handler returned -2
[45512113.300000] uml_net_start_xmit: failed(-1)
[45512116.580000] load_TLS(O_FORCE) in fork_handler returned -2
Antoine
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [uml-devel] 2.6.15-rc1 Badness in handle_page_fault
2006-01-16 20:50 [uml-devel] 2.6.15-rc1 Badness in handle_page_fault Antoine Martin
@ 2006-01-16 23:54 ` Jeff Dike
2006-01-17 1:33 ` Blaisorblade
0 siblings, 1 reply; 5+ messages in thread
From: Jeff Dike @ 2006-01-16 23:54 UTC (permalink / raw)
To: Antoine Martin; +Cc: UML devel
On Mon, Jan 16, 2006 at 08:50:03PM +0000, Antoine Martin wrote:
> Found these in a guest running 2.6.15-rc1.
> Note sure this is relevant anymore, but here it is anyway:
>
> [45512066.140000] Badness in handle_page_fault at
> arch/um/kernel/trap_kern.c:101
> [45512066.830000] load_TLS(O_FORCE) in fork_handler returned -2
These are fixed.
Jeff
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [uml-devel] 2.6.15-rc1 Badness in handle_page_fault
2006-01-16 23:54 ` Jeff Dike
@ 2006-01-17 1:33 ` Blaisorblade
2006-01-17 3:37 ` Jeff Dike
0 siblings, 1 reply; 5+ messages in thread
From: Blaisorblade @ 2006-01-17 1:33 UTC (permalink / raw)
To: user-mode-linux-devel; +Cc: Jeff Dike, Antoine Martin
On Tuesday 17 January 2006 00:54, Jeff Dike wrote:
> On Mon, Jan 16, 2006 at 08:50:03PM +0000, Antoine Martin wrote:
> > Found these in a guest running 2.6.15-rc1.
> > Note sure this is relevant anymore, but here it is anyway:
> >
> > [45512066.140000] Badness in handle_page_fault at
> > arch/um/kernel/trap_kern.c:101
> >
> > [45512066.830000] load_TLS(O_FORCE) in fork_handler returned -2
>
> These are fixed.
I remember the badness in handle_page_fault (bogus warning from me), what
about load_TLS? I only got -22, I fixed it by removing tls-debug (it was a
kludgy attempt to get things working, and didn't appear correct to me); still
not completely tested.
See my "TLS patches compilation fixups" for the fixes.
--
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [uml-devel] 2.6.15-rc1 Badness in handle_page_fault
2006-01-17 1:33 ` Blaisorblade
@ 2006-01-17 3:37 ` Jeff Dike
2006-01-17 14:10 ` Blaisorblade
0 siblings, 1 reply; 5+ messages in thread
From: Jeff Dike @ 2006-01-17 3:37 UTC (permalink / raw)
To: Blaisorblade; +Cc: user-mode-linux-devel, Antoine Martin
On Tue, Jan 17, 2006 at 02:33:59AM +0100, Blaisorblade wrote:
> what
> about load_TLS? I only got -22, I fixed it by removing tls-debug
That's caused by referring to errno in kernel code. That gets you the
value of kernel_errno, which could be anything.
Jeff
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [uml-devel] 2.6.15-rc1 Badness in handle_page_fault
2006-01-17 3:37 ` Jeff Dike
@ 2006-01-17 14:10 ` Blaisorblade
0 siblings, 0 replies; 5+ messages in thread
From: Blaisorblade @ 2006-01-17 14:10 UTC (permalink / raw)
To: Jeff Dike; +Cc: user-mode-linux-devel, Antoine Martin
On Tuesday 17 January 2006 04:37, Jeff Dike wrote:
> On Tue, Jan 17, 2006 at 02:33:59AM +0100, Blaisorblade wrote:
> > what
> > about load_TLS? I only got -22, I fixed it by removing tls-debug
>
> That's caused by referring to errno in kernel code. That gets you the
> value of kernel_errno, which could be anything.
Ok, in fact -2 (-ENOENT) didn't make sense, while -22 (-EINVAL) makes a lot.
You agree to removing the -debug part? Can you retest without that? I've done
a patch which complains if it ever returns something different from -EINVAL
(it's in my uploaded patchset, the last one, URL posted in my email).
--
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade
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^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2006-01-17 14:11 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2006-01-16 20:50 [uml-devel] 2.6.15-rc1 Badness in handle_page_fault Antoine Martin
2006-01-16 23:54 ` Jeff Dike
2006-01-17 1:33 ` Blaisorblade
2006-01-17 3:37 ` Jeff Dike
2006-01-17 14:10 ` Blaisorblade
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