From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
Subject: [Bug 30370] New: Nouveau module crashes with "divide
error"
Date: Fri, 24 Sep 2010 23:01:46 -0700 (PDT)
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Sender: nouveau-bounces+gcfxn-nouveau=m.gmane.org-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
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To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
List-Id: nouveau.vger.kernel.org
https://bugs.freedesktop.org/show_bug.cgi?id=30370
Summary: Nouveau module crashes with "divide error"
Product: xorg
Version: git
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: critical
Priority: medium
Component: Driver/nouveau
AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
ReportedBy: aa_z9-PkbjNfxxIARBDgjK7y7TUQ@public.gmane.org
QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
Created an attachment (id=38947)
--> (https://bugs.freedesktop.org/attachment.cgi?id=38947)
dmesg output with drm.debug=14 nouveau.reg_debug=0x0200
The latest version of the nouveau module crashes on my PC with a divide error.
git://anongit.freedesktop.org/nouveau/linux-2.6
Commit: 9c4f93718e0ced5c2b028cb84159a063daa5d576
Date: Fri Sep 24 09:17:02 2010 +1000
>From dmesg:
...
[ 4.730824] divide error: 0000 [#1] SMP
...
[ 4.737222] Pid: 667, comm: modprobe Not tainted 2.6.36-rc5+ #4 Portable
PC/Portable PC
[ 4.737342] RIP: 0010:[] []
nv50_pm_clock_get+0xa8/0xc0 [nouveau]
[ 4.737560] RSP: 0018:ffff880139875a20 EFLAGS: 00010246
[ 4.737660] RAX: 0000000000000000 RBX: ffff880138180000 RCX:
0000000000000000
[ 4.737762] RDX: 0000000000000000 RSI: 0000000000000046 RDI:
ffffc90004704034
[ 4.737864] RBP: ffff880139875a28 R08: 000000000003171d R09:
0000000000000000
[ 4.737965] R10: 0000000000000000 R11: 0000000000000003 R12:
0000000000000000
[ 4.738067] R13: ffff880138180f68 R14: ffff880139875a78 R15:
0000000000000108
[ 4.738170] FS: 00007ffdcdf4c700(0000) GS:ffff880001700000(0000)
knlGS:0000000000000000
[ 4.738290] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 4.738389] CR2: 000000000061d488 CR3: 0000000139130000 CR4:
00000000000006e0
[ 4.738491] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 4.738594] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 4.738696] Process modprobe (pid: 667, threadinfo ffff880139874000, task
ffff88013b652920)
[ 4.738815] Stack:
[ 4.738904] ffff880139b92120 ffff880139875a58 ffffffffa01d8c71
0000000000000003
[ 4.739207] <0> ffff880138180f68 ffff880138180000 ffff880139b92120
ffff880139875bb8
[ 4.739669] <0> ffffffffa01d8ed3 ffff880100000028 ffff880139875ac8
342079726f6d656d
[ 4.740005] Call Trace:
[ 4.740005] [] nouveau_pm_perflvl_get+0x91/0xe0 [nouveau]
[ 4.740005] [] nouveau_pm_init+0x103/0x3a0 [nouveau]
[ 4.740005] [] ? nouveau_bios_init+0x1a72/0x2800
[nouveau]
[ 4.740005] [] ? __get_free_pages+0x12/0x50
[ 4.740005] [] ? mutex_lock+0x19/0x50
[ 4.740005] [] nouveau_card_init+0x3bb/0x1390 [nouveau]
[ 4.740005] [] nouveau_load+0x429/0x700 [nouveau]
[ 4.740005] [] drm_get_pci_dev+0x180/0x2a0 [drm]
[ 4.740005] [] nouveau_pci_probe+0x10/0x17 [nouveau]
[ 4.740005] [] local_pci_probe+0x12/0x20
[ 4.740005] [] pci_device_probe+0x80/0xb0
[ 4.740005] [] ? driver_sysfs_add+0x7a/0xb0
[ 4.740005] [] driver_probe_device+0x89/0x1a0
[ 4.740005] [] __driver_attach+0x93/0xa0
[ 4.740005] [] ? __driver_attach+0x0/0xa0
[ 4.740005] [] bus_for_each_dev+0x68/0x90
[ 4.740005] [] driver_attach+0x19/0x20
[ 4.740005] [] bus_add_driver+0xb8/0x260
[ 4.740005] [] ? nouveau_init+0x0/0x4a [nouveau]
[ 4.740005] [] driver_register+0x78/0x140
[ 4.740005] [] ? nouveau_init+0x0/0x4a [nouveau]
[ 4.740005] [] __pci_register_driver+0x51/0xd0
[ 4.740005] [] drm_pci_init+0xcf/0xe0 [drm]
[ 4.740005] [] ? nouveau_init+0x0/0x4a [nouveau]
[ 4.740005] [] drm_init+0x53/0x70 [drm]
[ 4.740005] [] nouveau_init+0x48/0x4a [nouveau]
[ 4.740005] [] do_one_initcall+0x3e/0x170
[ 4.740005] [] sys_init_module+0xba/0x200
[ 4.740005] [] system_call_fastpath+0x16/0x1b
Full dmesg output attached.
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