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From: "Toralf Förster" <toralf.foerster@gmx.de>
To: Thomas Meyer <thomas@m3y3r.de>
Cc: UML devel <user-mode-linux-devel@lists.sourceforge.net>
Subject: Re: [uml-devel] does a x86 (== 32 bit) uml image works at a 64 bit system Gentoo hardened Linux ?
Date: Mon, 29 Dec 2014 14:52:36 +0100	[thread overview]
Message-ID: <54A15CA4.60907@gmx.de> (raw)
In-Reply-To: <5238511D-1948-4596-ADFE-478EC46A7868@m3y3r.de>

On 12/29/2014 10:55 AM, Thomas Meyer wrote:
> Probably you need this patch for 3.19
> 
> https://lkml.org/lkml/2014/12/10/222

right, helped a little bit, now v3.19-rc1-58-g29169f8 gives:

...
EXT4-fs (ubda): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) readonly on device 98:0.
devtmpfs: mounted
NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper:1]

EIP: 0023:[<df5e5c9e>] CPU: 0 Not tainted ESP: 002b:864afea8 EFLAGS: 00000246
    Not tainted
EAX: 00000007 EBX: 000072db ECX: 864afee4 EDX: 40000002
ESI: 0a201a28 EDI: 000072db EBP: 864afef4 DS: 002b ES: 002b

EIP: 0023:[<08064260>] CPU: 0 Tainted: G             L ESP: 002b:864af5b0 EFLAGS: 00010202
    Tainted: G             L
EAX: 864a8000 EBX: 00000023 ECX: 00000001 EDX: 0871f844
ESI: 0a201a28 EDI: 864a8000 EBP: 864af5d0 DS: 002b ES: 002b
Kernel panic - not syncing: Segfault with no mm
CPU: 0 PID: 1 Comm: swapper Tainted: G             L 3.19.0-rc1-00058-g29169f8-dirty #5
Stack:
 85f6f000 86449280 0b7d04c0 0a201a28 864af5f4 864af604 08072258 86449280
 864af5e8 080642ed 864a0000 085393ac 864af604 85f6ebd8 864af5f4 08064328
 000000c8 864af620 0810aa5b 864af604 85f6ec28 00000000 00000010 85f6ebdc
Call Trace:
 [<08072258>] ? os_free_irq_by_cb+0xe8/0x110
 [<080642ed>] __save_stack_trace+0x1d/0x40
 [<08064328>] save_stack_trace+0x18/0x20
 [<0810aa5b>] set_track+0x5b/0xe0
 [<08525463>] free_debug_processing+0x15a/0x2a5
 [<08072258>] ? os_free_irq_by_cb+0xe8/0x110
 [<085255e2>] __slab_free+0x34/0x2b0
 [<08072258>] ? os_free_irq_by_cb+0xe8/0x110
 [<080642ed>] ? __save_stack_trace+0x1d/0x40
 [<08064328>] ? save_stack_trace+0x18/0x20
 [<0810aa5b>] ? set_track+0x5b/0xe0
 [<0810a9a7>] ? init_object+0x67/0x70
 [<0810d5c1>] kfree+0x111/0x150
 [<08072258>] ? os_free_irq_by_cb+0xe8/0x110
 [<085254f7>] ? free_debug_processing+0x1ee/0x2a5
 [<0806ce07>] ? ubd_intr+0x77/0x110
 [<08072258>] ? os_free_irq_by_cb+0xe8/0x110
 [<08072258>] os_free_irq_by_cb+0xe8/0x110
 [<0805fb60>] ? same_irq_and_dev+0x0/0x30
 [<0805fbf8>] free_irq_by_cb+0x38/0x50
 [<0805fb60>] ? same_irq_and_dev+0x0/0x30
 [<0805ff21>] um_free_irq+0x21/0x40
 [<0806623e>] __free_winch+0x1e/0x60
 [<080662c3>] free_winch+0x43/0x50
 [<080663c5>] winch_cleanup+0x45/0x60
 [<08060cda>] do_uml_exitcalls+0x1a/0x30
 [<08061582>] uml_cleanup+0x12/0x20
 [<08072354>] last_ditch_exit+0x24/0x30
 [<080742f9>] ? set_signals+0x19/0x50
 [<0852b85c>] ? _raw_spin_unlock_irqrestore+0x1c/0x20
 [<08064ea4>] ? free_irqs+0x64/0xe0
 [<0805feed>] ? sigio_handler+0x7d/0x90
 [<0807412c>] ? sig_handler_common+0xbc/0xd0
 [<0852b831>] ? _raw_spin_unlock+0x11/0x20
 [<0810ceb4>] ? 
EIP: 0023:[<080662a8>] CPU: 0 Not tainted ESP: 002b:0871efdc EFLAGS: 00010282
    Not tainted
EAX: 00200200 EBX: 85f932ec ECX: ffffffe8 EDX: 00100100
ESI: 00000000 EDI: f0200000 EBP: 0871efe4 DS: 002b ES: 002b
Kernel panic - not syncing: Segfault with no mm
CPU: 0 PID: 1 Comm: swapper Not tainted 3.19.0-rc1-00058-g29169f8-dirty #5
Stack:
 0852b791 00100100 0871eff4 080663c5 087217ec 087014ac 0871f000 08060cda
 0875a3c0 0871f008 08061582 0871f018 08072354 00000000 871b5000 0871f710
 df5e5c70 0000000f 00000063 00000000 0000002b 0000002b f0200000 00000000
Call Trace:
 [<0852b791>] ? _raw_spin_lock+0x11/0x20
 [<080663c5>] winch_cleanup+0x45/0x60
 [<08060cda>] do_uml_exitcalls+0x1a/0x30
 [<08061582>] uml_cleanup+0x12/0x20
 [<08072354>] last_ditch_exit+0x24/0x30
 [<080d7d08>] ? mempool_free_slab+0x18/0x20
 [<080642ed>] ? __save_stack_trace+0x1d/0x40
 [<08064328>] ? save_stack_trace+0x18/0x20
 [<08060616>] ? deactivate_slab+0x424/0x470map_memory+0x56/0xc0

 [<080742f9>] ?  ? __munmap+0x16/0x40set_signals+0x19/0x50

 [<08072c41>] [<080db1fc>] ? get_page_from_freelist+0x32c/0x5b0os_unmap_memory+0x31/0x50

 [<0852b831>] [<08062042>] ?  ? _raw_spin_unlock+0x11/0x20flush_tlb_kernel_range_common+0xa2/0x180

 [<0810ceb4>] [<08062863>] ?  ? deactivate_slab+0x424/0x470flush_tlb_kernel_vm+0x13/0x20

 [<0852b831>] [<08062e30>] ?  ? _raw_spin_unlock+0x11/0x20segv+0x60/0x310

 [<0810ceb4>] [<08073ffa>] ?  ? deactivate_slab+0x424/0x470unblock_signals+0x1a/0x90
 [<080642ed>] [<080a8fcb>] ?  ? __save_stack_trace+0x1d/0x40handle_irq_event_percpu+0x10b/0x130

 [<0852b831>] [<0852b791>] ?  ? _raw_spin_unlock+0x11/0x20_raw_spin_lock+0x11/0x20

 [<080a902e>] [<0810ceb4>] ?  ? handle_irq_event+0x3e/0x50deactivate_slab+0x424/0x470

 [<080742f9>] [<080642ed>] ?  ? set_signals+0x19/0x50__save_stack_trace+0x1d/0x40

 [<080742f9>] [<0852b831>] ?  ? set_signals+0x19/0x50_raw_spin_unlock+0x11/0x20

 [<0852b85c>] [<0810ceb4>] ?  ? _raw_spin_unlock_irqrestore+0x1c/0x20deactivate_slab+0x424/0x470

 [<08064ea4>] [<080642ed>] ?  ? free_irqs+0x64/0xe0__save_stack_trace+0x1d/0x40

 [<0806314b>] [<0852b831>] ?  ? segv_handler+0x6b/0x80_raw_spin_unlock+0x11/0x20 [<0807669c>]
 ? userspace_tramp+0xc/0x2b0
 [<0807412c>] ? sig_handler_common+0xbc/0xd0
 [<0810ceb4>] [<08076690>] ?  ? deactivate_slab+0x424/0x470userspace_tramp+0x0/0x2b0

 [<080642ed>] [<0807669c>] ?  ? __save_stack_trace+0x1d/0x40userspace_tramp+0xc/0x2b0

 [<0852b831>] [<08074208>] ?  ? _raw_spin_unlock+0x11/0x20sig_handler+0x58/0x90

 [<0812ce49>] [<08073cfe>] ?  ? unlock_new_inode+0x59/0x60hard_handler+0x8e/0xd0

 [<08074318>] [<08076690>] ?  ? set_signals+0x38/0x50userspace_tramp+0x0/0x2b0

 [<084dbe93>] [<08076690>] ?  ? __waitpid_nocancel+0x19/0x76userspace_tramp+0x0/0x2b0

 [<08076d45>] [<0807669c>] ?  ? start_userspace+0x125/0x220userspace_tramp+0xc/0x2b0

 [<080636aa>]
 ? /home/tfoerste/workspace/bin/start_uml.sh: line 108: 28833 Terminated              $LINUX earlyprintk ubda=$ROOTFS ubdb=$SWAP eth0=$NET mem=$MEM $TTY umid=uml_$NAME rootfstype=ext4 "$ARGS"


-- 
Toralf
pgp key: 7B1A 07F4 EC82 0F90 D4C2  8936 872A E508 0076 E94E


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  reply	other threads:[~2014-12-29 14:05 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-29  9:23 [uml-devel] does a x86 (== 32 bit) uml image works at a 64 bit system Gentoo hardened Linux ? Toralf Förster
2014-12-29  9:55 ` Thomas Meyer
2014-12-29 13:52   ` Toralf Förster [this message]
2014-12-29 21:09     ` Toralf Förster

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