Bug 733608

Summary:	[abrt] general protection fault while shrinking dcache memory
Product:	[Fedora] Fedora	Reporter:	Mark Knoop <mark>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	15	CC:	gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, mark
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Unspecified
Whiteboard:	abrt_hash:c7fefe9bcddfc36814269d340e47fbc18c741088
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-03-06 15:27:07 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Mark Knoop 2011-08-26 08:40:31 UTC

abrt version: 2.0.3
architecture:   x86_64
cmdline:        ro root=/dev/mapper/System-Root rd_LVM_LV=System/Root rd_LVM_LV=System/Swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_GB.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=uk quiet vga=795 nmi_watchdog=1
comment:        Mounted EXT4 filesystem, started backup with rsync.
component:      kernel
kernel:         2.6.40.3-0.fc15.x86_64 #1 OEM OEM/AB9/AB9RPO(Intel965+ICH8
kernel_tainted: 128
kernel_tainted_long: Kernel has oopsed before.
os_release:     Fedora release 15 (Lovelock)
package:        kernel
reason:         [136250.846471] general protection fault: 0000 [#1] SMP 
reported_to:    kerneloops: URL=http://submit.kerneloops.org/submitoops.php
time:           Fri Aug 26 05:32:48 2011

backtrace:
:[136250.846471] general protection fault: 0000 [#1] SMP 
:[136250.846831] CPU 1 
:[136250.846834] Modules linked in: snd_seq_midi snd_seq_midi_event snd_seq_dummy snd_hrtimer tcp_lp vfat fat fuse ppdev parport_pc lp parport cpufreq_ondemand acpi_cpufreq freq_table mperf bnep nf_conntrack_ftp ip6t_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack bluetooth rfkill ip6table_filter ip6_tables w83627ehf hwmon_vid coretemp snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_seq usblp snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi microcode snd_pcm snd_seq_device joydev iTCO_wdt iTCO_vendor_support r8169 i2c_i801 mii sky2 snd_timer snd soundcore snd_page_alloc ipv6 firewire_ohci uas firewire_core pata_acpi ata_generic crc_itu_t usb_storage pata_jmicron nouveau ttm drm_kms_helper drm i2c_algo_bit i2c_core mxm_wmi wmi video [last unloaded: scsi_wait_scan]
:[136250.847004] 
:[136250.847004] Pid: 24, comm: kswapd0 Not tainted 2.6.40.3-0.fc15.x86_64 #1 OEM OEM/AB9/AB9RPO(Intel965+ICH8)
:[136250.847004] RIP: 0010:[<ffffffff8108343e>]  [<ffffffff8108343e>] do_raw_spin_trylock+0x9/0x26
:[136250.847004] RSP: 0018:ffff880163afbb90  EFLAGS: 00010202
:[136250.847004] RAX: ffff8800adfc6d80 RBX: ffff8800adfc6d80 RCX: ffffffff812368dd
:[136250.847004] RDX: 0000000000000008 RSI: 0000000000000000 RDI: 00ff880005275660
:[136250.847004] RBP: ffff880163afbb90 R08: ffff880005275df0 R09: ffffea0003be3678
:[136250.847004] R10: ffffea00020ffe10 R11: ffff8800accf8c00 R12: ffff880163afbc50
:[136250.847004] R13: 00ff880005275640 R14: 0000000000000000 R15: ffff880163afbcbc
:[136250.847004] FS:  0000000000000000(0000) GS:ffff88016fc80000(0000) knlGS:0000000000000000
:[136250.847004] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
:[136250.847004] CR2: 0000000003269000 CR3: 000000014af39000 CR4: 00000000000006e0
:[136250.847004] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
:[136250.847004] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
:[136250.847004] Process kswapd0 (pid: 24, threadinfo ffff880163afa000, task ffff88016766ae60)
:[136250.847004] Stack:
:[136250.847004]  ffff880163afbba0 ffffffff8148799e ffff880163afbbd0 ffffffff81137a1e
:[136250.847004]  ffff8800adfc6d80 ffff880163afbc50 ffff8800adfc6e00 0000000000000008
:[136250.847004]  ffff880163afbc20 ffffffff81137b79 0000000000000000 ffff8800accf8c00
:[136250.847004] Call Trace:
:[136250.847004]  [<ffffffff8148799e>] _raw_spin_trylock+0xe/0x18
:[136250.847004]  [<ffffffff81137a1e>] dentry_kill+0x28/0x121
:[136250.847004]  [<ffffffff81137b79>] shrink_dentry_list+0x62/0xb4
:[136250.847004]  [<ffffffff81137d0f>] __shrink_dcache_sb+0x144/0x156
:[136250.847004]  [<ffffffff81137e10>] shrink_dcache_memory+0xef/0x16b
:[136250.847004]  [<ffffffff810e8da8>] shrink_slab+0xf2/0x189
:[136250.847004]  [<ffffffff810eb8ca>] balance_pgdat+0x2e6/0x574
:[136250.847004]  [<ffffffff81241e33>] ? __bitmap_weight+0x34/0x80
:[136250.847004]  [<ffffffff810ebe0c>] kswapd+0x2b4/0x2f0
:[136250.847004]  [<ffffffff81070442>] ? remove_wait_queue+0x3a/0x3a
:[136250.847004]  [<ffffffff810ebb58>] ? balance_pgdat+0x574/0x574
:[136250.847004]  [<ffffffff8106fd53>] kthread+0x84/0x8c
:[136250.847004]  [<ffffffff8148f2a4>] kernel_thread_helper+0x4/0x10
:[136250.847004]  [<ffffffff8106fccf>] ? kthread_worker_fn+0x148/0x148
:[136250.847004]  [<ffffffff8148f2a0>] ? gs_change+0x13/0x13
:[136250.847004] Code: e5 66 66 66 66 90 b8 00 00 01 00 f0 0f c1 07 0f b7 d0 c1 e8 10 39 c2 74 07 f3 90 0f b7 17 eb f5 5d c3 55 48 89 e5 66 66 66 66 90 <8b> 07 89 c2 c1 c0 10 39 c2 8d 90 00 00 01 00 75 04 f0 0f b1 17 
:[136250.847004] RIP  [<ffffffff8108343e>] do_raw_spin_trylock+0x9/0x26
:[136250.847004]  RSP <ffff880163afbb90>
:[136250.847004] [drm] nouveau 0000:01:00.0: 0xC2B3: Parsing digital output script table
:[136250.847004] [drm] nouveau 0000:01:00.0: Setting dpms mode 0 on tmds encoder (output 1)
:[136250.847004] [drm] nouveau 0000:01:00.0: Output DVI-I-1 is running on CRTC 0 using output A
:[136250.847004] [drm] nouveau 0000:01:00.0: Setting dpms mode 0 on vga encoder (output 2)
:[136250.847004] [drm] nouveau 0000:01:00.0: Output VGA-1 is running on CRTC 1 using output C
:[136250.937365] ---[ end trace ab0e4bcad29087b1 ]---

Comment 1 Dave Jones 2012-03-05 22:20:26 UTC

The address it's faulted on is RDI: 00ff880005275660

That address has lost it's upper 8 bits. Looks like something scribbled 0x00 over random memory.

Was this after a suspend or hibernate ?

Comment 2 Mark Knoop 2012-03-06 11:02:27 UTC

No. This hasn't happened on newer kernels, I think since 3.0.

Comment 3 Dave Jones 2012-03-06 15:27:07 UTC

ok, let's close it out. If it reoccurs, feel free to reopen.

thanks.