* can't change euid 0 to uid != running user
@ 2007-10-05 14:25 Luciano Rocha
2007-10-05 15:28 ` Ray Lee
2007-10-05 15:59 ` Srivatsa Vaddagiri
0 siblings, 2 replies; 6+ messages in thread
From: Luciano Rocha @ 2007-10-05 14:25 UTC (permalink / raw)
To: linux-kernel
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Hello,
I have the following problem:
$ sudo -u ie -s # or sudo su ie
unable to change to runas uid: Resource temporarily unavailable
Works:
$ sudo su, followed by su ie
The first sudo also worked while I had a shell under user ie.
When I exited, it stopped working, but it is now working every time I
trie it.
dmesg shows:
[82602.729330] kobject_add failed for 504 with -EEXIST, don't try to
register things with the same name in the same directory.
[82602.729365] [<c04b9195>] kobject_shadow_add+0x16e/0x1a0
[82602.729383] [<c04b9480>] kobject_set_name+0x29/0x92
[82602.729504] [<c04238ea>] user_kobject_create+0x6a/0x90
[82602.729520] [<c0423cce>] alloc_uid+0x18f/0x1d7
[82602.729530] [<c0427030>] set_user+0x1c/0x8f
[82602.729539] [<c0428b5f>] sys_setresuid+0xd5/0x162
[82602.729552] [<c0403e6a>] syscall_call+0x7/0xb
[82602.729575] =======================
$ git describe
v2.6.23-rc9-156-ga95dacb
(Clone of Linus' tree, after rc9, with some patches from
mingo/linux-2.6-sched-devel.git, and a fix for lguest (didn't link due
to kasprintf)).
--
lfr
0/0
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: can't change euid 0 to uid != running user
2007-10-05 14:25 can't change euid 0 to uid != running user Luciano Rocha
@ 2007-10-05 15:28 ` Ray Lee
2007-10-05 19:29 ` Luciano Rocha
2007-10-07 16:49 ` Luciano Rocha
2007-10-05 15:59 ` Srivatsa Vaddagiri
1 sibling, 2 replies; 6+ messages in thread
From: Ray Lee @ 2007-10-05 15:28 UTC (permalink / raw)
To: Luciano Rocha, linux-kernel
On 10/5/07, Luciano Rocha <strange@nsk.no-ip.org> wrote:
> I have the following problem:
> $ sudo -u ie -s # or sudo su ie
> unable to change to runas uid: Resource temporarily unavailable
>
> Works:
> $ sudo su, followed by su ie
>
> The first sudo also worked while I had a shell under user ie.
>
> When I exited, it stopped working, but it is now working every time I
> trie it.
>
> dmesg shows:
>
> [82602.729330] kobject_add failed for 504 with -EEXIST, don't try to
> register things with the same name in the same directory.
> [82602.729365] [<c04b9195>] kobject_shadow_add+0x16e/0x1a0
> [82602.729383] [<c04b9480>] kobject_set_name+0x29/0x92
> [82602.729504] [<c04238ea>] user_kobject_create+0x6a/0x90
> [82602.729520] [<c0423cce>] alloc_uid+0x18f/0x1d7
> [82602.729530] [<c0427030>] set_user+0x1c/0x8f
> [82602.729539] [<c0428b5f>] sys_setresuid+0xd5/0x162
> [82602.729552] [<c0403e6a>] syscall_call+0x7/0xb
> [82602.729575] =======================
>
> $ git describe
> v2.6.23-rc9-156-ga95dacb
>
> (Clone of Linus' tree, after rc9, with some patches from
> mingo/linux-2.6-sched-devel.git, and a fix for lguest (didn't link due
> to kasprintf)).
Hmm, it works for me under 2.6.23-rc6, so it's either a difference
between our .configs or a late regression. If you could bisect the
problem (starting with reverting Ingo's sched devel patches and lguest
patches, and trying that), then that would tell us where the issue is.
Ray
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: can't change euid 0 to uid != running user
2007-10-05 15:28 ` Ray Lee
@ 2007-10-05 19:29 ` Luciano Rocha
2007-10-07 16:49 ` Luciano Rocha
1 sibling, 0 replies; 6+ messages in thread
From: Luciano Rocha @ 2007-10-05 19:29 UTC (permalink / raw)
To: Ray Lee; +Cc: linux-kernel
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On Fri, Oct 05, 2007 at 08:28:50AM -0700, Ray Lee wrote:
> On 10/5/07, Luciano Rocha <strange@nsk.no-ip.org> wrote:
> > I have the following problem:
> > $ sudo -u ie -s # or sudo su ie
> > unable to change to runas uid: Resource temporarily unavailable
> >
> > Works:
> > $ sudo su, followed by su ie
> >
> > The first sudo also worked while I had a shell under user ie.
> >
> > When I exited, it stopped working, but it is now working every time I
> > trie it.
> >
> > dmesg shows:
> >
> > [82602.729330] kobject_add failed for 504 with -EEXIST, don't try to
> > register things with the same name in the same directory.
> > [82602.729365] [<c04b9195>] kobject_shadow_add+0x16e/0x1a0
> > [82602.729383] [<c04b9480>] kobject_set_name+0x29/0x92
> > [82602.729504] [<c04238ea>] user_kobject_create+0x6a/0x90
> > [82602.729520] [<c0423cce>] alloc_uid+0x18f/0x1d7
> > [82602.729530] [<c0427030>] set_user+0x1c/0x8f
> > [82602.729539] [<c0428b5f>] sys_setresuid+0xd5/0x162
> > [82602.729552] [<c0403e6a>] syscall_call+0x7/0xb
> > [82602.729575] =======================
> >
> > $ git describe
> > v2.6.23-rc9-156-ga95dacb
> >
> > (Clone of Linus' tree, after rc9, with some patches from
> > mingo/linux-2.6-sched-devel.git, and a fix for lguest (didn't link due
> > to kasprintf)).
>
> Hmm, it works for me under 2.6.23-rc6, so it's either a difference
> between our .configs or a late regression. If you could bisect the
> problem (starting with reverting Ingo's sched devel patches and lguest
> patches, and trying that), then that would tell us where the issue is.
I'll try a clean Linus' tree tomorrow and see if I can reproduce the
problem.
--
lfr
0/0
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: can't change euid 0 to uid != running user
2007-10-05 15:28 ` Ray Lee
2007-10-05 19:29 ` Luciano Rocha
@ 2007-10-07 16:49 ` Luciano Rocha
2007-10-07 23:56 ` Ray Lee
1 sibling, 1 reply; 6+ messages in thread
From: Luciano Rocha @ 2007-10-07 16:49 UTC (permalink / raw)
To: Ray Lee; +Cc: linux-kernel
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On Fri, Oct 05, 2007 at 08:28:50AM -0700, Ray Lee wrote:
> On 10/5/07, Luciano Rocha <strange@nsk.no-ip.org> wrote:
> > I have the following problem:
> > $ sudo -u ie -s # or sudo su ie
> > unable to change to runas uid: Resource temporarily unavailable
> >
> > Works:
> > $ sudo su, followed by su ie
> >
> > The first sudo also worked while I had a shell under user ie.
> >
> > When I exited, it stopped working, but it is now working every time I
> > trie it.
> >
> > dmesg shows:
> >
> > [82602.729330] kobject_add failed for 504 with -EEXIST, don't try to
> > register things with the same name in the same directory.
> > [82602.729365] [<c04b9195>] kobject_shadow_add+0x16e/0x1a0
> > [82602.729383] [<c04b9480>] kobject_set_name+0x29/0x92
> > [82602.729504] [<c04238ea>] user_kobject_create+0x6a/0x90
> > [82602.729520] [<c0423cce>] alloc_uid+0x18f/0x1d7
> > [82602.729530] [<c0427030>] set_user+0x1c/0x8f
> > [82602.729539] [<c0428b5f>] sys_setresuid+0xd5/0x162
> > [82602.729552] [<c0403e6a>] syscall_call+0x7/0xb
> > [82602.729575] =======================
> >
> > $ git describe
> > v2.6.23-rc9-156-ga95dacb
> >
> > (Clone of Linus' tree, after rc9, with some patches from
> > mingo/linux-2.6-sched-devel.git, and a fix for lguest (didn't link due
> > to kasprintf)).
>
> Hmm, it works for me under 2.6.23-rc6, so it's either a difference
> between our .configs or a late regression. If you could bisect the
> problem (starting with reverting Ingo's sched devel patches and lguest
> patches, and trying that), then that would tell us where the issue is.
>
Without the patches, i.e., a clean Linus tree (v2.6.23-rc9-41-g804b3f9),
I can't reproduce it anymore.
The commits since v2.6.23-rc9:
804b3f9a16e446cb023417faec58b6506c834052 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
3e0ca2f148f97c5748f52bcf2a69dd17cb2b1d13 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
c7659e2c139d0be4647bef89188a932e0254d709 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
66b1f1a982bf4dbad9fa0de25b8d95c4936f05c4 Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
991bf528f602882580d0918842b125255d246a19 drivers/ata/pata_ixp4xx_cf.c: ioremap return code check
90925d3050253ff7b4f5d1660071df75f44bd0ff Ata: pata_marvell, use ioread* for iomap-ped memory
4007b493ee6e4a52c2b618ab8361847fba5bf116 libata: fix for sata_mv >64KB DMA segments
bda0233b89c10ae46ccecb78bffdaf0fd7833d17 ocfs2: Unlock mutex in local alloc failure case
529d303e075aa6d988f30935b8995ffb382ad38e sky2: jumbo frame regression fix
5c55c434917429f229a1bf43def97fd421f444c6 Merge branch 'fixes-jgarzik' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes
cda6a20b68c1f21f4b4bc9cd3ee08494e7ebf0d5 Blackfin arch: fix PORT_J BUG for BF537/6 EMAC driver reported by Kalle Pokki <kalle.pokki@iki.fi>
c58c2140f08de4ad0b0dbd48f6e78168dc321042 Blackfin arch: gpio pinmux and resource allocation API required by BF537 on chip ethernet mac driver
9ea0f043fec38fadb0101fbf29563a5635f42e93 [MIPS] Terminally fix local_{dec,sub}_if_positive
fef74705ea310acd716c2722bfeb0f796cf23640 [MIPS] Type proof reimplementation of cmpxchg.
f6a9e6dec537dc1d9d2c62d7b8ad205d0993bddc [MIPS] pg-r4k.c: Fix a typo in an R4600 v2 erratum workaround
ee0a8169b693e1c708d0f9af0a5e4ade65a65439 [PATCH] softmac: Fix compiler-warning
4365e99f9587b94010e9818a4237ce2b1c734e91 [PATCH] bcm43xx: Correct printk with PFX before KERN_
f778089cb2445dfc6dfd30a7a567925fd8589f1e Merge branch 'sas-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6
db7a89db5e3bc6ba131965183577b15fd6fc92cc Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
2910ca6f8ae69648623b3c05b79be87dd7bda73d Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
d237098c03eb91cef240e9a1b248c0e1ecd1c80c Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched
114d5b1ca265f8a582dcbf0030da20ccdddbe8e1 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
2b3b29080d702e5488f214276170ab46adc40ee5 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
e80eaf9904d5b19512265e1435372b2e12146a5f Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
d136552e8beadcf5e59089292e2ba44f09e3aad8 aic94xx: fix DMA data direction for SMP requests
f662fe5a0b144efadbfc00e8040e603ec318746e dm9601: Fix receive MTU
593ff56ef2a23ed3a66ee87d9c9b33044b9fb193 mv643xx_eth: Do not modify struct netdev tx_queue_len
50626297b1beb0a29c0f174be39f36485533216c qla3xxx: bugfix: Fix VLAN rx completion handling.
b323e0e49fe9331ee3a7a336af879d6e303b16b3 qla3xxx: bugfix: Add memory barrier before accessing rx completion.
4c74d4ec3524a8f31deadd115139dd93bc91d598 ata_piix: add another TECRA M3 entry to broken suspend list
30084fbd1caa4b2e1a336fcdef60b68129d1d8f8 sched: fix profile=sleep
25e5566ed38650f7990041fcd20571d6ddd2a040 [SPARC64]: Fix missing load-twin usage in Niagara-1 memcpy.
04045f98e0457aba7d4e6736f37eed189c48a5f7 [IEEE80211]: avoid integer underflow for runt rx frames
9b42c336d06411e6463949d2dac63949f66ff70b [TCP]: secure_tcp_sequence_number() should not use a too fast clock
32740ddc1095e5e320bf961dda146bf97bc28adb [SFQ]: Remove artificial limitation for queue limit.
e48395f1753cab0fde6c03f1db833cece9ef2ba0 [POWERPC] Fix xics set_affinity code
8cc8c28a9acdceda0e60519167a052cc3408c5c3 [SPARC64]: Fix put_user() calls in binfmt_aout32.c
9c908f97d0f9aee32fa6d4b0a44c4c5d0ccab2b0 [SPARC]: Fix EBUS use of uninitialized variable.
0b95f22bd3b91c7114c6892bbfbb5a8576b27fbe Blackfin arch: add some missing syscall
576bb9ced2d274446639d7fbeee7125e24daf012 binfmt_flat: checkpatch fixing minimum support for the blackfin relocations
f9720205d1f847cb59e197e851b5276425363f6b Binfmt_flat: Add minimum support for the Blackfin relocations
--
lfr
0/0
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: can't change euid 0 to uid != running user
2007-10-07 16:49 ` Luciano Rocha
@ 2007-10-07 23:56 ` Ray Lee
0 siblings, 0 replies; 6+ messages in thread
From: Ray Lee @ 2007-10-07 23:56 UTC (permalink / raw)
To: Luciano Rocha, Ray Lee, linux-kernel, Srivatsa Vaddagiri,
Ingo Molnar, dhaval
On 10/7/07, Luciano Rocha <strange@nsk.no-ip.org> wrote:
> On Fri, Oct 05, 2007 at 08:28:50AM -0700, Ray Lee wrote:
> > On 10/5/07, Luciano Rocha <strange@nsk.no-ip.org> wrote:
> > > I have the following problem:
> > > $ sudo -u ie -s # or sudo su ie
> > > unable to change to runas uid: Resource temporarily unavailable
> > >
> > > Works:
> > > $ sudo su, followed by su ie
> > > [........]
> > > (Clone of Linus' tree, after rc9, with some patches from
> > > mingo/linux-2.6-sched-devel.git, and a fix for lguest (didn't link due
> > > to kasprintf)).
> >
> > Hmm, it works for me under 2.6.23-rc6, so it's either a difference
> > between our .configs or a late regression. If you could bisect the
> > problem (starting with reverting Ingo's sched devel patches and lguest
> > patches, and trying that), then that would tell us where the issue is.
> >
>
> Without the patches, i.e., a clean Linus tree (v2.6.23-rc9-41-g804b3f9),
> I can't reproduce it anymore.
>
Okay, so it's probably the issue Srivatsa identified and mentioned to
you, regarding a possible bug in the CFS-devel tree:
> This seems to be similar to the problem Ingo reported
> (http://marc.info/?l=linux-kernel&m=119125007102969). We have sent a fix
> for it subsequently (http://marc.info/?l=linux-kernel&m=119143193812026).
>
> Can you resync to Ingo's latest cfs-devel tree (which will remove the
> bad patch you have), then apply the patch at
> http://marc.info/?l=linux-kernel&m=119143193812026 and verify if the
> problem goes away?
Ray
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: can't change euid 0 to uid != running user
2007-10-05 14:25 can't change euid 0 to uid != running user Luciano Rocha
2007-10-05 15:28 ` Ray Lee
@ 2007-10-05 15:59 ` Srivatsa Vaddagiri
1 sibling, 0 replies; 6+ messages in thread
From: Srivatsa Vaddagiri @ 2007-10-05 15:59 UTC (permalink / raw)
To: Luciano Rocha, linux-kernel; +Cc: Ingo Molnar, dhaval
On Fri, Oct 05, 2007 at 03:25:43PM +0100, Luciano Rocha wrote:
> I have the following problem:
> $ sudo -u ie -s # or sudo su ie
> unable to change to runas uid: Resource temporarily unavailable
>
> Works:
> $ sudo su, followed by su ie
>
> The first sudo also worked while I had a shell under user ie.
>
> When I exited, it stopped working, but it is now working every time I
> trie it.
>
> dmesg shows:
>
> [82602.729330] kobject_add failed for 504 with -EEXIST, don't try to
> register things with the same name in the same directory.
> [82602.729365] [<c04b9195>] kobject_shadow_add+0x16e/0x1a0
> [82602.729383] [<c04b9480>] kobject_set_name+0x29/0x92
> [82602.729504] [<c04238ea>] user_kobject_create+0x6a/0x90
> [82602.729520] [<c0423cce>] alloc_uid+0x18f/0x1d7
> [82602.729530] [<c0427030>] set_user+0x1c/0x8f
> [82602.729539] [<c0428b5f>] sys_setresuid+0xd5/0x162
> [82602.729552] [<c0403e6a>] syscall_call+0x7/0xb
> [82602.729575] =======================
This seems to be similar to the problem Ingo reported
(http://marc.info/?l=linux-kernel&m=119125007102969). We have sent a fix
for it subsequently (http://marc.info/?l=linux-kernel&m=119143193812026).
Can you resync to Ingo's latest cfs-devel tree (which will remove the
bad patch you have), then apply the patch at
http://marc.info/?l=linux-kernel&m=119143193812026 and verify if the
problem goes away?
--
Regards,
vatsa
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2007-10-07 23:56 UTC | newest]
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2007-10-05 14:25 can't change euid 0 to uid != running user Luciano Rocha
2007-10-05 15:28 ` Ray Lee
2007-10-05 19:29 ` Luciano Rocha
2007-10-07 16:49 ` Luciano Rocha
2007-10-07 23:56 ` Ray Lee
2007-10-05 15:59 ` Srivatsa Vaddagiri
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