* kernel BUG at fs/buffer.c:1234!
@ 2013-06-19 16:41 Dustin Lundquist
2013-06-19 18:55 ` Theodore Ts'o
0 siblings, 1 reply; 7+ messages in thread
From: Dustin Lundquist @ 2013-06-19 16:41 UTC (permalink / raw)
To: linux-ext4
I've run into the following oops several times with the 3.10-rc3 through
-rc6, and they have not occurred under 3.9. Originally they only
occurred when running Google Chrome, but this is the first time it has
happened in another application.
After this occurs I can not access any local files, but still able to
use remote systems and executables which are already cached.
[36386.297932] ------------[ cut here ]------------
[36386.297961] kernel BUG at fs/buffer.c:1234!
[36386.297982] invalid opcode: 0000 [#1] SMP
[36386.298004] Modules linked in: hidp ecb ip6table_filter ip6_tables
ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat
nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT
xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables
bridge stp llc parport_pc ppdev lp parport cpufreq_conservative
cpufreq_powersave cpufreq_stats cpufreq_userspace rfcomm bnep
binfmt_misc uinput loop ecryptfs hid_generic usbhid hid
snd_hda_codec_hdmi snd_hda_codec_realtek uvcvideo videobuf2_vmalloc
videobuf2_memops videobuf2_core videodev btusb bluetooth joydev coretemp
kvm_intel kvm crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64
lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support
arc4 snd_hda_intel snd_hda_codec thinkpad_acpi iwldvm snd_hwdep snd_pcm
snd_page_alloc mac80211 nvram snd_seq snd_timer snd_seq_device psmouse
serio_raw i915 snd evdev iwlwifi drm_kms_helper microcode battery
i2c_i801 drm ac lpc_ich mfd_core pcspkr i2c_algo_bit cfg80211 i2c_core
video wmi ehci_pci rfkill soundcore ehci_hcd acpi_cpufreq mperf button
processor ext4 crc16 jbd2 mbcache dm_mod sg sd_mod crc_t10dif ahci
libahci thermal thermal_sys xhci_hcd libata usbcore usb_common e1000e
ptp sdhci_pci pps_core sdhci scsi_mod mmc_core
[36386.298747] CPU: 1 PID: 28664 Comm: debconf-communi Not tainted
3.10.0-rc6 #1
[36386.298836] Hardware name: LENOVO 2306CTO/2306CTO, BIOS G2ET94WW
(2.54 ) 04/30/2013
[36386.298930] task: ffff88039f3d8040 ti: ffff8803653bc000 task.ti:
ffff8803653bc000
[36386.299021] RIP: 0010:[<ffffffff8112396e>] [<ffffffff8112396e>]
check_irqs_on+0x7/0xa
[36386.299130] RSP: 0018:ffff8803653bd540 EFLAGS: 00010046
[36386.299196] RAX: 0000000000000096 RBX: 0000000000001000 RCX:
0000000000000000
[36386.299283] RDX: 0000000000001000 RSI: 0000000000a8207b RDI:
ffff88041d788a80
[36386.299370] RBP: ffff88041d788a80 R08: 0000000001400000 R09:
0000000000000010
[36386.299457] R10: 0000000000000000 R11: 000000000000000e R12:
0000000000a8207b
[36386.299543] R13: 0000000000000001 R14: 0000000000a8207b R15:
0000000000000000
[36386.299638] FS: 00007f09ccc6d700(0000) GS:ffff88041e240000(0000)
knlGS:0000000000000000
[36386.299756] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[36386.299845] CR2: 0000000001852c38 CR3: 0000000352268000 CR4:
00000000001407e0
[36386.299952] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[36386.300061] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[36386.300166] Stack:
[36386.300200] ffffffff81123bb5 0000000000000001 ffff8803fae99fb0
ffff8803653bd5b0
[36386.300329] ffffffffa015010d ffff8803653bd6b4 ffff8803653bd630
ffff8803653bd630
[36386.300458] ffff8803fae9a870 0000000000000000 ffff8803653bd6b4
0000000000001000
[36386.300591] Call Trace:
[36386.300641] [<ffffffff81123bb5>] ? __find_get_block+0x17/0x162
[36386.300770] [<ffffffffa015010d>] ?
__check_block_validity.constprop.53+0x27/0x65 [ext4]
[36386.300898] [<ffffffff811248f1>] ? __getblk+0x1b/0x275
[36386.301004] [<ffffffffa0151c55>] ? ext4_getblk+0x9b/0x15d [ext4]
[36386.301118] [<ffffffffa0151d24>] ? ext4_bread+0xd/0x61 [ext4]
[36386.301234] [<ffffffffa0157f2f>] ? __ext4_read_dirblock+0x35/0x251
[ext4]
[36386.301361] [<ffffffffa015836c>] ? dx_probe+0x38/0x308 [ext4]
[36386.301469] [<ffffffffa0157fae>] ? __ext4_read_dirblock+0xb4/0x251
[ext4]
[36386.301593] [<ffffffffa01590cc>] ? ext4_dx_find_entry+0x3d/0x152 [ext4]
[36386.301698] [<ffffffff810eef43>] ? ____cache_alloc+0x41/0x251
[36386.301792] [<ffffffff810eef43>] ? ____cache_alloc+0x41/0x251
[36386.301890] [<ffffffff81194244>] ? blkcipher_walk_done+0xb2/0x16f
[36386.302008] [<ffffffffa01592ee>] ? ext4_find_entry+0x10d/0x3be [ext4]
[36386.302111] [<ffffffff810efd03>] ? __kmalloc+0x13a/0x14c
[36386.302196] [<ffffffff81110e8c>] ? __d_alloc+0x3f/0x141
[36386.302300] [<ffffffffa01595d5>] ? ext4_lookup+0x36/0x10b [ext4]
[36386.302398] [<ffffffff8110f347>] ? spin_unlock+0x5/0x6
[36386.306492] [<ffffffff81107d05>] ? lookup_real+0x24/0x3f
[36386.310214] [<ffffffff8110814c>] ? __lookup_hash+0x2a/0x31
[36386.313899] [<ffffffff8110bda6>] ? lookup_one_len+0xd3/0xe5
[36386.317355] [<ffffffffa05e61e1>] ? ecryptfs_lookup+0xff/0x2d3 [ecryptfs]
[36386.320621] [<ffffffff81107d05>] ? lookup_real+0x24/0x3f
[36386.323711] [<ffffffff8110b491>] ? do_last+0x509/0xa16
[36386.326638] [<ffffffff8110923a>] ? __inode_permission+0x2f/0x95
[36386.329532] [<ffffffff8110ba62>] ? path_openat+0xc4/0x335
[36386.332207] [<ffffffff8110bf7e>] ? do_filp_open+0x2a/0x6e
[36386.334746] [<ffffffff8105b816>] ? load_balance+0xc7/0x5e0
[36386.337225] [<ffffffff811419e2>] ? cn_printf+0xda/0xea
[36386.339602] [<ffffffff810ffa1b>] ? file_open_name+0x27/0x2d
[36386.341943] [<ffffffff810ffa43>] ? filp_open+0x22/0x27
[36386.344216] [<ffffffff81142250>] ? do_coredump+0x85e/0xbe6
[36386.346503] [<ffffffff81053e11>] ? finish_task_switch+0x78/0x9a
[36386.348717] [<ffffffff8103f87a>] ? get_signal_to_deliver+0x46a/0x4a5
[36386.351041] [<ffffffff8100214a>] ? do_signal+0x3c/0x504
[36386.352025] [<ffffffff811007aa>] ? vfs_write+0xdc/0x103
[36386.353904] [<ffffffff81100864>] ? vfs_read+0x93/0xf5
[36386.356074] [<ffffffff81002637>] ? do_notify_resume+0x25/0x68
[36386.358250] [<ffffffff81370862>] ? int_signal+0x12/0x17
[36386.360377] Code: db b6 6d 48 c1 fe 03 48 0f af f0 48 b8 00 00 00 00
00 88 ff ff 48 c1 e6 0c 48 01 c6 48 01 f2 48 89 57 28 c3 9c 58 f6 c4 02
75 02 <0f> 0b c3 55 48 c7 c5 60 f3 00 00 83 c8 ff 53 31 db 41 52 65 c7
[36386.365120] RIP [<ffffffff8112396e>] check_irqs_on+0x7/0xa
[36386.367479] RSP <ffff8803653bd540>
[36386.381228] ---[ end trace 3ddcbffc09c97c49 ]---
Full dmesg output and .config are here:
https://gist.github.com/dlundquist/1d94dd938f03c5d06a2b
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: kernel BUG at fs/buffer.c:1234!
2013-06-19 16:41 kernel BUG at fs/buffer.c:1234! Dustin Lundquist
@ 2013-06-19 18:55 ` Theodore Ts'o
2013-06-20 16:20 ` Dustin Lundquist
0 siblings, 1 reply; 7+ messages in thread
From: Theodore Ts'o @ 2013-06-19 18:55 UTC (permalink / raw)
To: Dustin Lundquist; +Cc: linux-ext4
On Wed, Jun 19, 2013 at 09:41:36AM -0700, Dustin Lundquist wrote:
> I've run into the following oops several times with the 3.10-rc3
> through -rc6, and they have not occurred under 3.9. Originally they
> only occurred when running Google Chrome, but this is the first time
> it has happened in another application.
So this is very strange. fs/buffer.c:1234 for 3.10-rc6 is this
BUG_ON:
static inline void check_irqs_on(void)
{
#ifdef irqs_disabled
BUG_ON(irqs_disabled());
#endif
}
The only place where ext4 turns off irq's is very briefly in
fs/ext4/page-io.c, and it's pretty easy to visually inspect all of the
calls to spin_lock_irqsave() and spin_lock_irqrestore() and
lock_irq_save() and local_irq_restore() are properly bracketed --- and
the stack trace does not have any of the functions that are defined in
fs/ext4/page_io.c.
I notice from the dmesg file that one of the ext4 file systems is
mounted on a device mapper volume. What kind of dm device is it?
- Ted
>
> After this occurs I can not access any local files, but still able
> to use remote systems and executables which are already cached.
>
> [36386.297932] ------------[ cut here ]------------
> [36386.297961] kernel BUG at fs/buffer.c:1234!
> [36386.297982] invalid opcode: 0000 [#1] SMP
> [36386.298004] Modules linked in: hidp ecb ip6table_filter
> ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat
> nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
> nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp
> iptable_filter ip_tables x_tables bridge stp llc parport_pc ppdev lp
> parport cpufreq_conservative cpufreq_powersave cpufreq_stats
> cpufreq_userspace rfcomm bnep binfmt_misc uinput loop ecryptfs
> hid_generic usbhid hid snd_hda_codec_hdmi snd_hda_codec_realtek
> uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev
> btusb bluetooth joydev coretemp kvm_intel kvm crc32c_intel
> ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper
> ablk_helper cryptd iTCO_wdt iTCO_vendor_support arc4 snd_hda_intel
> snd_hda_codec thinkpad_acpi iwldvm snd_hwdep snd_pcm snd_page_alloc
> mac80211 nvram snd_seq snd_timer snd_seq_device psmouse serio_raw
> i915 snd evdev iwlwifi drm_kms_helper microcode battery i2c_i801 drm
> ac lpc_ich mfd_core pcspkr i2c_algo_bit cfg80211 i2c_core video wmi
> ehci_pci rfkill soundcore ehci_hcd acpi_cpufreq mperf button
> processor ext4 crc16 jbd2 mbcache dm_mod sg sd_mod crc_t10dif ahci
> libahci thermal thermal_sys xhci_hcd libata usbcore usb_common
> e1000e ptp sdhci_pci pps_core sdhci scsi_mod mmc_core
> [36386.298747] CPU: 1 PID: 28664 Comm: debconf-communi Not tainted
> 3.10.0-rc6 #1
> [36386.298836] Hardware name: LENOVO 2306CTO/2306CTO, BIOS G2ET94WW
> (2.54 ) 04/30/2013
> [36386.298930] task: ffff88039f3d8040 ti: ffff8803653bc000 task.ti:
> ffff8803653bc000
> [36386.299021] RIP: 0010:[<ffffffff8112396e>] [<ffffffff8112396e>]
> check_irqs_on+0x7/0xa
> [36386.299130] RSP: 0018:ffff8803653bd540 EFLAGS: 00010046
> [36386.299196] RAX: 0000000000000096 RBX: 0000000000001000 RCX:
> 0000000000000000
> [36386.299283] RDX: 0000000000001000 RSI: 0000000000a8207b RDI:
> ffff88041d788a80
> [36386.299370] RBP: ffff88041d788a80 R08: 0000000001400000 R09:
> 0000000000000010
> [36386.299457] R10: 0000000000000000 R11: 000000000000000e R12:
> 0000000000a8207b
> [36386.299543] R13: 0000000000000001 R14: 0000000000a8207b R15:
> 0000000000000000
> [36386.299638] FS: 00007f09ccc6d700(0000) GS:ffff88041e240000(0000)
> knlGS:0000000000000000
> [36386.299756] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [36386.299845] CR2: 0000000001852c38 CR3: 0000000352268000 CR4:
> 00000000001407e0
> [36386.299952] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [36386.300061] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
> 0000000000000400
> [36386.300166] Stack:
> [36386.300200] ffffffff81123bb5 0000000000000001 ffff8803fae99fb0
> ffff8803653bd5b0
> [36386.300329] ffffffffa015010d ffff8803653bd6b4 ffff8803653bd630
> ffff8803653bd630
> [36386.300458] ffff8803fae9a870 0000000000000000 ffff8803653bd6b4
> 0000000000001000
> [36386.300591] Call Trace:
> [36386.300641] [<ffffffff81123bb5>] ? __find_get_block+0x17/0x162
> [36386.300770] [<ffffffffa015010d>] ?
> __check_block_validity.constprop.53+0x27/0x65 [ext4]
> [36386.300898] [<ffffffff811248f1>] ? __getblk+0x1b/0x275
> [36386.301004] [<ffffffffa0151c55>] ? ext4_getblk+0x9b/0x15d [ext4]
> [36386.301118] [<ffffffffa0151d24>] ? ext4_bread+0xd/0x61 [ext4]
> [36386.301234] [<ffffffffa0157f2f>] ?
> __ext4_read_dirblock+0x35/0x251 [ext4]
> [36386.301361] [<ffffffffa015836c>] ? dx_probe+0x38/0x308 [ext4]
> [36386.301469] [<ffffffffa0157fae>] ?
> __ext4_read_dirblock+0xb4/0x251 [ext4]
> [36386.301593] [<ffffffffa01590cc>] ? ext4_dx_find_entry+0x3d/0x152 [ext4]
> [36386.301698] [<ffffffff810eef43>] ? ____cache_alloc+0x41/0x251
> [36386.301792] [<ffffffff810eef43>] ? ____cache_alloc+0x41/0x251
> [36386.301890] [<ffffffff81194244>] ? blkcipher_walk_done+0xb2/0x16f
> [36386.302008] [<ffffffffa01592ee>] ? ext4_find_entry+0x10d/0x3be [ext4]
> [36386.302111] [<ffffffff810efd03>] ? __kmalloc+0x13a/0x14c
> [36386.302196] [<ffffffff81110e8c>] ? __d_alloc+0x3f/0x141
> [36386.302300] [<ffffffffa01595d5>] ? ext4_lookup+0x36/0x10b [ext4]
> [36386.302398] [<ffffffff8110f347>] ? spin_unlock+0x5/0x6
> [36386.306492] [<ffffffff81107d05>] ? lookup_real+0x24/0x3f
> [36386.310214] [<ffffffff8110814c>] ? __lookup_hash+0x2a/0x31
> [36386.313899] [<ffffffff8110bda6>] ? lookup_one_len+0xd3/0xe5
> [36386.317355] [<ffffffffa05e61e1>] ? ecryptfs_lookup+0xff/0x2d3 [ecryptfs]
> [36386.320621] [<ffffffff81107d05>] ? lookup_real+0x24/0x3f
> [36386.323711] [<ffffffff8110b491>] ? do_last+0x509/0xa16
> [36386.326638] [<ffffffff8110923a>] ? __inode_permission+0x2f/0x95
> [36386.329532] [<ffffffff8110ba62>] ? path_openat+0xc4/0x335
> [36386.332207] [<ffffffff8110bf7e>] ? do_filp_open+0x2a/0x6e
> [36386.334746] [<ffffffff8105b816>] ? load_balance+0xc7/0x5e0
> [36386.337225] [<ffffffff811419e2>] ? cn_printf+0xda/0xea
> [36386.339602] [<ffffffff810ffa1b>] ? file_open_name+0x27/0x2d
> [36386.341943] [<ffffffff810ffa43>] ? filp_open+0x22/0x27
> [36386.344216] [<ffffffff81142250>] ? do_coredump+0x85e/0xbe6
> [36386.346503] [<ffffffff81053e11>] ? finish_task_switch+0x78/0x9a
> [36386.348717] [<ffffffff8103f87a>] ? get_signal_to_deliver+0x46a/0x4a5
> [36386.351041] [<ffffffff8100214a>] ? do_signal+0x3c/0x504
> [36386.352025] [<ffffffff811007aa>] ? vfs_write+0xdc/0x103
> [36386.353904] [<ffffffff81100864>] ? vfs_read+0x93/0xf5
> [36386.356074] [<ffffffff81002637>] ? do_notify_resume+0x25/0x68
> [36386.358250] [<ffffffff81370862>] ? int_signal+0x12/0x17
> [36386.360377] Code: db b6 6d 48 c1 fe 03 48 0f af f0 48 b8 00 00 00
> 00 00 88 ff ff 48 c1 e6 0c 48 01 c6 48 01 f2 48 89 57 28 c3 9c 58 f6
> c4 02 75 02 <0f> 0b c3 55 48 c7 c5 60 f3 00 00 83 c8 ff 53 31 db 41
> 52 65 c7
> [36386.365120] RIP [<ffffffff8112396e>] check_irqs_on+0x7/0xa
> [36386.367479] RSP <ffff8803653bd540>
> [36386.381228] ---[ end trace 3ddcbffc09c97c49 ]---
>
> Full dmesg output and .config are here:
> https://gist.github.com/dlundquist/1d94dd938f03c5d06a2b
> --
> To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: kernel BUG at fs/buffer.c:1234!
2013-06-19 18:55 ` Theodore Ts'o
@ 2013-06-20 16:20 ` Dustin Lundquist
2013-06-20 16:34 ` Theodore Ts'o
0 siblings, 1 reply; 7+ messages in thread
From: Dustin Lundquist @ 2013-06-20 16:20 UTC (permalink / raw)
To: Theodore Ts'o; +Cc: linux-ext4
On 06/19/2013 11:55 AM, Theodore Ts'o wrote:
> On Wed, Jun 19, 2013 at 09:41:36AM -0700, Dustin Lundquist wrote:
>> I've run into the following oops several times with the 3.10-rc3
>> through -rc6, and they have not occurred under 3.9. Originally they
>> only occurred when running Google Chrome, but this is the first time
>> it has happened in another application.
>
> So this is very strange. fs/buffer.c:1234 for 3.10-rc6 is this
> BUG_ON:
>
> static inline void check_irqs_on(void)
> {
> #ifdef irqs_disabled
> BUG_ON(irqs_disabled());
> #endif
> }
>
> The only place where ext4 turns off irq's is very briefly in
> fs/ext4/page-io.c, and it's pretty easy to visually inspect all of the
> calls to spin_lock_irqsave() and spin_lock_irqrestore() and
> lock_irq_save() and local_irq_restore() are properly bracketed --- and
> the stack trace does not have any of the functions that are defined in
> fs/ext4/page_io.c.
>
> I notice from the dmesg file that one of the ext4 file systems is
> mounted on a device mapper volume. What kind of dm device is it?
This is an LVM volume on a single SSD. I've include fdisk, mount and lvm
output at https://gist.github.com/dlundquist/1d94dd938f03c5d06a2b.
Another clue might be that I'm using ecryptfs to encrypt my home directory.
Since the system is still half way responsive after this occurs, is
there any other information I can gather after if occurs to aid in
diagnosing this?
Thanks,
Dustin Lundquist
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: kernel BUG at fs/buffer.c:1234!
2013-06-20 16:20 ` Dustin Lundquist
@ 2013-06-20 16:34 ` Theodore Ts'o
2013-07-04 20:31 ` Dustin Lundquist
0 siblings, 1 reply; 7+ messages in thread
From: Theodore Ts'o @ 2013-06-20 16:34 UTC (permalink / raw)
To: Dustin Lundquist; +Cc: linux-ext4
On Thu, Jun 20, 2013 at 09:20:01AM -0700, Dustin Lundquist wrote:
>
> Since the system is still half way responsive after this occurs, is
> there any other information I can gather after if occurs to aid in
> diagnosing this?
Hmm.... the only thing I can think of is to sprinkle in some
WARN_ON(irqs_disabled());
calls in various top-half routines in ext4 code, especially in
ext4_lookup() and ext4_find_entry(), and perhaps in the vfs layer to
see if we can figure out where the interrupts are getting disabled.
The fact that blkcipher_walk_done() was showing up in the stack trace
is certainly suspicious.
- Ted
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: kernel BUG at fs/buffer.c:1234!
2013-06-20 16:34 ` Theodore Ts'o
@ 2013-07-04 20:31 ` Dustin Lundquist
2013-07-08 14:12 ` Jan Kara
0 siblings, 1 reply; 7+ messages in thread
From: Dustin Lundquist @ 2013-07-04 20:31 UTC (permalink / raw)
To: Theodore Ts'o; +Cc: linux-ext4
I've narrowed this down a bit more: this seems to only occur when a
program attempts to core dump when run within ecryptfs mount. I've been
able to reliably reproduce it with: int main() { assert(0); };
Additionally my earlier report that I'm not able to access any local
files was incorrect: it seems to be limited to the directory which the
program attempted to core dump in.
I've update my kernel with WARN_ON(irqs_disabled()); in ext4_lookup(),
ext4_find_entry() and ecryptfs_lookup() and then only received the
following:
> [ 71.368060] ------------[ cut here ]------------
> [ 71.368107] WARNING: at fs/ext4/namei.c:1420 ext4_lookup+0x2a/0x126 [ext4]()
> [ 71.368110] Modules linked in: hidp hid fuse ecb ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc parport_pc ppdev lp parport cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace rfcomm bnep binfmt_misc uinput loop ecryptfs uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev btusb bluetooth snd_hda_codec_hdmi snd_hda_codec_realtek joydev coretemp kvm_intel kvm crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support arc4 iwldvm snd_hda_intel snd_hda_codec mac80211 snd_hwdep thinkpad_acpi
snd_pcm pcspkr snd_page_alloc nvram snd_seq snd_timer snd_seq_device iwlwifi microcode i915 ehci_pci psmouse snd serio_raw evdev i2c_i801 drm_kms_helper ehci_hcd cfg80211 lpc_ich mfd_core s
oundcore
drm rfkill battery i2c_algo_bit ac i2c_core wmi video acpi_cpufreq mperf processor button ext4 crc16 jbd2 mbcache dm_mod sg sd_mod crc_t10dif sdhci_pci ahci sdhci libahci mmc_core libata e1000e ptp pps_core scsi_mod xhci_hcd usbcore usb_common thermal thermal_sys
> [ 71.368216] CPU: 3 PID: 4560 Comm: test_assert Not tainted 3.10.0 #3
> [ 71.368219] Hardware name: LENOVO 2306CTO/2306CTO, BIOS G2ET94WW (2.54 ) 04/30/2013
> [ 71.368222] ffffffff8136cf25 0000000000000000 ffffffff8102fbad 0000000000000000
> [ 71.368228] 0000000000000000 ffff8803d4cbf988 ffff8803f48fbc70 ffff8803d9903900
> [ 71.368232] ffff8803d4decac0 ffff8803f30468c0 ffffffffa01575ee ffff8803f30468c0
> [ 71.368237] Call Trace:
> [ 71.368247] [<ffffffff8136cf25>] ? dump_stack+0xd/0x17
> [ 71.368255] [<ffffffff8102fbad>] ? warn_slowpath_common+0x5f/0x77
> [ 71.368271] [<ffffffffa01575ee>] ? ext4_lookup+0x2a/0x126 [ext4]
> [ 71.368277] [<ffffffff8110f59f>] ? spin_unlock+0x5/0x6
> [ 71.368282] [<ffffffff8111141e>] ? d_alloc+0x61/0x69
> [ 71.368288] [<ffffffff81107f5d>] ? lookup_real+0x24/0x3f
> [ 71.368293] [<ffffffff811083a4>] ? __lookup_hash+0x2a/0x31
> [ 71.368298] [<ffffffff8110bffe>] ? lookup_one_len+0xd3/0xe5
> [ 71.368306] [<ffffffffa05c81f9>] ? ecryptfs_lookup+0x117/0x2eb [ecryptfs]
> [ 71.368311] [<ffffffff81107f5d>] ? lookup_real+0x24/0x3f
> [ 71.368316] [<ffffffff8110b6e9>] ? do_last+0x509/0xa16
> [ 71.368321] [<ffffffff81109492>] ? __inode_permission+0x2f/0x95
> [ 71.368327] [<ffffffff8110bcba>] ? path_openat+0xc4/0x335
> [ 71.368333] [<ffffffff810cb77c>] ? __inc_zone_state+0x3f/0x47
> [ 71.368338] [<ffffffff8110c1d6>] ? do_filp_open+0x2a/0x6e
> [ 71.368345] [<ffffffff81141c6e>] ? cn_printf+0xda/0xea
> [ 71.368350] [<ffffffff810ffc2b>] ? file_open_name+0x27/0x2d
> [ 71.368354] [<ffffffff810ffc53>] ? filp_open+0x22/0x27
> [ 71.368359] [<ffffffff811424dc>] ? do_coredump+0x85e/0xbe6
> [ 71.368366] [<ffffffff810b61cc>] ? find_get_page+0x3e/0x5f
> [ 71.368373] [<ffffffff8136f4c9>] ? _cond_resched+0x6/0x1a
> [ 71.368380] [<ffffffff8103f892>] ? get_signal_to_deliver+0x46a/0x4a5
> [ 71.368385] [<ffffffff8103db63>] ? signal_wake_up_state+0x1e/0x31
> [ 71.368390] [<ffffffff8100214a>] ? do_signal+0x3c/0x504
> [ 71.368395] [<ffffffff81002637>] ? do_notify_resume+0x25/0x68
> [ 71.368400] [<ffffffff81370ca2>] ? int_signal+0x12/0x17
> [ 71.368403] ---[ end trace c3af132f2e9b580b ]---
> [ 71.368405] ------------[ cut here ]------------
> [ 71.368417] WARNING: at fs/ext4/namei.c:1235 ext4_find_entry+0x3d/0x3e3 [ext4]()
> [ 71.368419] Modules linked in: hidp hid fuse ecb ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc parport_pc ppdev lp parport cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace rfcomm bnep binfmt_misc uinput loop ecryptfs uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev btusb bluetooth snd_hda_codec_hdmi snd_hda_codec_realtek joydev coretemp kvm_intel kvm crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support arc4 iwldvm snd_hda_intel snd_hda_codec mac80211 snd_hwdep thinkpad_acpi
snd_pcm pcspkr snd_page_alloc nvram snd_seq snd_timer snd_seq_device iwlwifi microcode i915 ehci_pci psmouse snd serio_raw evdev i2c_i801 drm_kms_helper ehci_hcd cfg80211 lpc_ich mfd_core s
oundcore
drm rfkill battery i2c_algo_bit ac i2c_core wmi video acpi_cpufreq mperf processor button ext4 crc16 jbd2 mbcache dm_mod sg sd_mod crc_t10dif sdhci_pci ahci sdhci libahci mmc_core libata e1000e ptp pps_core scsi_mod xhci_hcd usbcore usb_common thermal thermal_sys
> [ 71.368517] CPU: 3 PID: 4560 Comm: test_assert Tainted: G W 3.10.0 #3
> [ 71.368519] Hardware name: LENOVO 2306CTO/2306CTO, BIOS G2ET94WW (2.54 ) 04/30/2013
> [ 71.368521] ffffffff8136cf25 0000000000000000 ffffffff8102fbad ffffffff818b8682
> [ 71.368526] 0000000000000000 00000000d4cbf828 ffff8803f48fbc70 ffff8803d4decb40
> [ 71.368530] ffff8803d4decac0 0000000000000000 ffffffffa015721e ffff8803d4cbf8f0
> [ 71.368535] Call Trace:
> [ 71.368539] [<ffffffff8136cf25>] ? dump_stack+0xd/0x17
> [ 71.368544] [<ffffffff8102fbad>] ? warn_slowpath_common+0x5f/0x77
> [ 71.368560] [<ffffffffa015721e>] ? ext4_find_entry+0x3d/0x3e3 [ext4]
> [ 71.368577] [<ffffffffa01575ee>] ? ext4_lookup+0x2a/0x126 [ext4]
> [ 71.368592] [<ffffffffa01575ee>] ? ext4_lookup+0x2a/0x126 [ext4]
> [ 71.368597] [<ffffffff8102fbb2>] ? warn_slowpath_common+0x64/0x77
> [ 71.368612] [<ffffffffa0157615>] ? ext4_lookup+0x51/0x126 [ext4]
> [ 71.368616] [<ffffffff8110f59f>] ? spin_unlock+0x5/0x6
> [ 71.368620] [<ffffffff8111141e>] ? d_alloc+0x61/0x69
> [ 71.368625] [<ffffffff81107f5d>] ? lookup_real+0x24/0x3f
> [ 71.368629] [<ffffffff811083a4>] ? __lookup_hash+0x2a/0x31
> [ 71.368635] [<ffffffff8110bffe>] ? lookup_one_len+0xd3/0xe5
> [ 71.368642] [<ffffffffa05c81f9>] ? ecryptfs_lookup+0x117/0x2eb [ecryptfs]
> [ 71.368647] [<ffffffff81107f5d>] ? lookup_real+0x24/0x3f
> [ 71.368652] [<ffffffff8110b6e9>] ? do_last+0x509/0xa16
> [ 71.368657] [<ffffffff81109492>] ? __inode_permission+0x2f/0x95
> [ 71.368662] [<ffffffff8110bcba>] ? path_openat+0xc4/0x335
> [ 71.368667] [<ffffffff810cb77c>] ? __inc_zone_state+0x3f/0x47
> [ 71.368672] [<ffffffff8110c1d6>] ? do_filp_open+0x2a/0x6e
> [ 71.368678] [<ffffffff81141c6e>] ? cn_printf+0xda/0xea
> [ 71.368682] [<ffffffff810ffc2b>] ? file_open_name+0x27/0x2d
> [ 71.368686] [<ffffffff810ffc53>] ? filp_open+0x22/0x27
> [ 71.368691] [<ffffffff811424dc>] ? do_coredump+0x85e/0xbe6
> [ 71.368696] [<ffffffff810b61cc>] ? find_get_page+0x3e/0x5f
> [ 71.368701] [<ffffffff8136f4c9>] ? _cond_resched+0x6/0x1a
> [ 71.368707] [<ffffffff8103f892>] ? get_signal_to_deliver+0x46a/0x4a5
> [ 71.368711] [<ffffffff8103db63>] ? signal_wake_up_state+0x1e/0x31
> [ 71.368716] [<ffffffff8100214a>] ? do_signal+0x3c/0x504
> [ 71.368721] [<ffffffff81002637>] ? do_notify_resume+0x25/0x68
> [ 71.368724] [<ffffffff81370ca2>] ? int_signal+0x12/0x17
> [ 71.368727] ---[ end trace c3af132f2e9b580c ]---
> [ 71.368741] ------------[ cut here ]------------
> [ 71.368806] kernel BUG at fs/buffer.c:1234!
> [ 71.368859] invalid opcode: 0000 [#1] SMP
> [ 71.368916] Modules linked in: hidp hid fuse ecb ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc parport_pc ppdev lp parport cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace rfcomm bnep binfmt_misc uinput loop ecryptfs uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev btusb bluetooth snd_hda_codec_hdmi snd_hda_codec_realtek joydev coretemp kvm_intel kvm crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support arc4 iwldvm snd_hda_intel snd_hda_codec mac80211 snd_hwdep thinkpad_acpi
snd_pcm pcspkr snd_page_alloc nvram snd_seq snd_timer snd_seq_device iwlwifi microcode i915 ehci_pci psmouse snd serio_raw evdev i2c_i801 drm_kms_helper ehci_hcd cfg80211 lpc_ich mfd_core s
oundcore
drm rfkill battery i2c_algo_bit ac i2c_core wmi video acpi_cpufreq mperf processor button ext4 crc16 jbd2 mbcache dm_mod sg sd_mod crc_t10dif sdhci_pci ahci sdhci libahci mmc_core libata e1000e ptp pps_core scsi_mod xhci_hcd usbcore usb_common thermal thermal_sys
> [ 71.370597] CPU: 3 PID: 4560 Comm: test_assert Tainted: G W 3.10.0 #3
> [ 71.370685] Hardware name: LENOVO 2306CTO/2306CTO, BIOS G2ET94WW (2.54 ) 04/30/2013
> [ 71.370777] task: ffff8804097055e0 ti: ffff8803d4cbe000 task.ti: ffff8803d4cbe000
> [ 71.370868] RIP: 0010:[<ffffffff81123bfa>] [<ffffffff81123bfa>] check_irqs_on+0x7/0xa
> [ 71.370971] RSP: 0018:ffff8803d4cbf540 EFLAGS: 00010046
> [ 71.371037] RAX: 0000000000000096 RBX: 0000000000001000 RCX: 0000000000000000
> [ 71.371122] RDX: 0000000000001000 RSI: 0000000000a8207b RDI: ffff88041d7c7740
> [ 71.371208] RBP: ffff88041d7c7740 R08: 0000000001400000 R09: 0000000000000000
> [ 71.371294] R10: 0000000000000000 R11: ffffffff814dae00 R12: 0000000000a8207b
> [ 71.371380] R13: 0000000000000001 R14: 0000000000a8207b R15: 0000000000000000
> [ 71.371467] FS: 00007f3a5c944700(0000) GS:ffff88041e2c0000(0000) knlGS:0000000000000000
> [ 71.371565] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 71.371634] CR2: 00007f3a5c425070 CR3: 00000003f346f000 CR4: 00000000001407e0
> [ 71.371720] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 71.371806] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [ 71.371891] Stack:
> [ 71.371917] ffffffff81123e41 0000000000000001 ffff8803f3fe8358 ffff8803d4cbf5b0
> [ 71.372017] ffffffffa014e10d ffff8803d4cbf6b4 ffff8803d4cbf630 ffff8803d4cbf630
> [ 71.372117] ffff8803f48fbc70 0000000000000000 ffff8803d4cbf6b4 0000000000001000
> [ 71.372217] Call Trace:
> [ 71.372253] [<ffffffff81123e41>] ? __find_get_block+0x17/0x162
> [ 71.372341] [<ffffffffa014e10d>] ? __check_block_validity.constprop.53+0x27/0x65 [ext4]
> [ 71.372441] [<ffffffff81124b7d>] ? __getblk+0x1b/0x275
> [ 71.372519] [<ffffffffa014fc55>] ? ext4_getblk+0x9b/0x15d [ext4]
> [ 71.372596] [<ffffffff8136ff4d>] ? _raw_spin_trylock+0x5/0x13
> [ 71.372681] [<ffffffffa014fd24>] ? ext4_bread+0xd/0x61 [ext4]
> [ 71.372755] [<ffffffff81031549>] ? console_unlock+0x2c6/0x303
> [ 71.372839] [<ffffffffa0155f2f>] ? __ext4_read_dirblock+0x35/0x251 [ext4]
> [ 71.372935] [<ffffffffa015636c>] ? dx_probe+0x38/0x308 [ext4]
> [ 71.373008] [<ffffffff81005039>] ? show_trace_log_lvl+0x2c/0x56
> [ 71.373094] [<ffffffffa01570cc>] ? ext4_dx_find_entry+0x3d/0x152 [ext4]
> [ 71.373179] [<ffffffff8136a902>] ? printk+0x4f/0x54
> [ 71.373252] [<ffffffffa015721e>] ? ext4_find_entry+0x3d/0x3e3 [ext4]
> [ 71.373333] [<ffffffff8102fbb2>] ? warn_slowpath_common+0x64/0x77
> [ 71.373421] [<ffffffffa0157313>] ? ext4_find_entry+0x132/0x3e3 [ext4]
> [ 71.373515] [<ffffffffa01575ee>] ? ext4_lookup+0x2a/0x126 [ext4]
> [ 71.373601] [<ffffffffa01575ee>] ? ext4_lookup+0x2a/0x126 [ext4]
> [ 71.376994] [<ffffffff8102fbb2>] ? warn_slowpath_common+0x64/0x77
> [ 71.380410] [<ffffffffa0157615>] ? ext4_lookup+0x51/0x126 [ext4]
> [ 71.383809] [<ffffffff8110f59f>] ? spin_unlock+0x5/0x6
> [ 71.387089] [<ffffffff81107f5d>] ? lookup_real+0x24/0x3f
> [ 71.390236] [<ffffffff811083a4>] ? __lookup_hash+0x2a/0x31
> [ 71.393253] [<ffffffff8110bffe>] ? lookup_one_len+0xd3/0xe5
> [ 71.396152] [<ffffffffa05c81f9>] ? ecryptfs_lookup+0x117/0x2eb [ecryptfs]
> [ 71.398948] [<ffffffff81107f5d>] ? lookup_real+0x24/0x3f
> [ 71.401614] [<ffffffff8110b6e9>] ? do_last+0x509/0xa16
> [ 71.404152] [<ffffffff81109492>] ? __inode_permission+0x2f/0x95
> [ 71.406579] [<ffffffff8110bcba>] ? path_openat+0xc4/0x335
> [ 71.408960] [<ffffffff810cb77c>] ? __inc_zone_state+0x3f/0x47
> [ 71.411307] [<ffffffff8110c1d6>] ? do_filp_open+0x2a/0x6e
> [ 71.413623] [<ffffffff81141c6e>] ? cn_printf+0xda/0xea
> [ 71.415889] [<ffffffff810ffc2b>] ? file_open_name+0x27/0x2d
> [ 71.418123] [<ffffffff810ffc53>] ? filp_open+0x22/0x27
> [ 71.420317] [<ffffffff811424dc>] ? do_coredump+0x85e/0xbe6
> [ 71.422516] [<ffffffff810b61cc>] ? find_get_page+0x3e/0x5f
> [ 71.424701] [<ffffffff8136f4c9>] ? _cond_resched+0x6/0x1a
> [ 71.426876] [<ffffffff8103f892>] ? get_signal_to_deliver+0x46a/0x4a5
> [ 71.429073] [<ffffffff8103db63>] ? signal_wake_up_state+0x1e/0x31
> [ 71.431238] [<ffffffff8100214a>] ? do_signal+0x3c/0x504
> [ 71.433364] [<ffffffff81002637>] ? do_notify_resume+0x25/0x68
> [ 71.435483] [<ffffffff81370ca2>] ? int_signal+0x12/0x17
> [ 71.437588] Code: db b6 6d 48 c1 fe 03 48 0f af f0 48 b8 00 00 00 00 00 88 ff ff 48 c1 e6 0c 48 01 c6 48 01 f2 48 89 57 28 c3 9c 58 f6 c4 02 75 02 <0f> 0b c3 55 48 c7 c5 60 f3 00 00 83 c8 ff 53 31 db 41 52 65 c7
> [ 71.442432] RIP [<ffffffff81123bfa>] check_irqs_on+0x7/0xa
> [ 71.444766] RSP <ffff8803d4cbf540>
> [ 71.463545] ---[ end trace c3af132f2e9b580d ]---
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: kernel BUG at fs/buffer.c:1234!
2013-07-04 20:31 ` Dustin Lundquist
@ 2013-07-08 14:12 ` Jan Kara
2013-07-10 4:05 ` Dustin Lundquist
0 siblings, 1 reply; 7+ messages in thread
From: Jan Kara @ 2013-07-08 14:12 UTC (permalink / raw)
To: Dustin Lundquist; +Cc: Theodore Ts'o, linux-ext4
On Thu 04-07-13 13:31:30, Dustin Lundquist wrote:
> I've narrowed this down a bit more: this seems to only occur when a
> program attempts to core dump when run within ecryptfs mount. I've
> been able to reliably reproduce it with: int main() { assert(0); };
>
> Additionally my earlier report that I'm not able to access any local
> files was incorrect: it seems to be limited to the directory which
> the program attempted to core dump in.
>
> I've update my kernel with WARN_ON(irqs_disabled()); in
> ext4_lookup(), ext4_find_entry() and ecryptfs_lookup() and then only
> received the following:
Hum, so it's interesting that ecryptfs_lookup() WARN_ON() didn't trigger
but ext4 one did. Strangely enough I don't see a place in the call chain
where irqs could get disabled. Can you maybe trace using irq tracing at
which point exactly do we disable interrupts?
Honza
>
> >[ 71.368060] ------------[ cut here ]------------
> >[ 71.368107] WARNING: at fs/ext4/namei.c:1420 ext4_lookup+0x2a/0x126 [ext4]()
> >[ 71.368110] Modules linked in: hidp hid fuse ecb ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc parport_pc ppdev lp parport cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace rfcomm bnep binfmt_misc uinput loop ecryptfs uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev btusb bluetooth snd_hda_codec_hdmi snd_hda_codec_realtek joydev coretemp kvm_intel kvm crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support arc4 iwldvm snd_hda_intel snd_hda_codec mac80211 snd_hwdep thinkpad_acp
i snd_pcm pcspkr snd_page_alloc nvram snd_seq snd_timer snd_seq_device iwlwifi microcode i915 ehci_pci psmouse snd serio_raw evdev i2c_i801 drm_kms_helper ehci_hcd cfg80211 lpc_ich mfd_core s
> oundcore drm rfkill battery i2c_algo_bit ac i2c_core wmi video
> acpi_cpufreq mperf processor button ext4 crc16 jbd2 mbcache dm_mod
> sg sd_mod crc_t10dif sdhci_pci ahci sdhci libahci mmc_core libata
> e1000e ptp pps_core scsi_mod xhci_hcd usbcore usb_common thermal
> thermal_sys
> >[ 71.368216] CPU: 3 PID: 4560 Comm: test_assert Not tainted 3.10.0 #3
> >[ 71.368219] Hardware name: LENOVO 2306CTO/2306CTO, BIOS G2ET94WW (2.54 ) 04/30/2013
> >[ 71.368222] ffffffff8136cf25 0000000000000000 ffffffff8102fbad 0000000000000000
> >[ 71.368228] 0000000000000000 ffff8803d4cbf988 ffff8803f48fbc70 ffff8803d9903900
> >[ 71.368232] ffff8803d4decac0 ffff8803f30468c0 ffffffffa01575ee ffff8803f30468c0
> >[ 71.368237] Call Trace:
> >[ 71.368247] [<ffffffff8136cf25>] ? dump_stack+0xd/0x17
> >[ 71.368255] [<ffffffff8102fbad>] ? warn_slowpath_common+0x5f/0x77
> >[ 71.368271] [<ffffffffa01575ee>] ? ext4_lookup+0x2a/0x126 [ext4]
> >[ 71.368277] [<ffffffff8110f59f>] ? spin_unlock+0x5/0x6
> >[ 71.368282] [<ffffffff8111141e>] ? d_alloc+0x61/0x69
> >[ 71.368288] [<ffffffff81107f5d>] ? lookup_real+0x24/0x3f
> >[ 71.368293] [<ffffffff811083a4>] ? __lookup_hash+0x2a/0x31
> >[ 71.368298] [<ffffffff8110bffe>] ? lookup_one_len+0xd3/0xe5
> >[ 71.368306] [<ffffffffa05c81f9>] ? ecryptfs_lookup+0x117/0x2eb [ecryptfs]
> >[ 71.368311] [<ffffffff81107f5d>] ? lookup_real+0x24/0x3f
> >[ 71.368316] [<ffffffff8110b6e9>] ? do_last+0x509/0xa16
> >[ 71.368321] [<ffffffff81109492>] ? __inode_permission+0x2f/0x95
> >[ 71.368327] [<ffffffff8110bcba>] ? path_openat+0xc4/0x335
> >[ 71.368333] [<ffffffff810cb77c>] ? __inc_zone_state+0x3f/0x47
> >[ 71.368338] [<ffffffff8110c1d6>] ? do_filp_open+0x2a/0x6e
> >[ 71.368345] [<ffffffff81141c6e>] ? cn_printf+0xda/0xea
> >[ 71.368350] [<ffffffff810ffc2b>] ? file_open_name+0x27/0x2d
> >[ 71.368354] [<ffffffff810ffc53>] ? filp_open+0x22/0x27
> >[ 71.368359] [<ffffffff811424dc>] ? do_coredump+0x85e/0xbe6
> >[ 71.368366] [<ffffffff810b61cc>] ? find_get_page+0x3e/0x5f
> >[ 71.368373] [<ffffffff8136f4c9>] ? _cond_resched+0x6/0x1a
> >[ 71.368380] [<ffffffff8103f892>] ? get_signal_to_deliver+0x46a/0x4a5
> >[ 71.368385] [<ffffffff8103db63>] ? signal_wake_up_state+0x1e/0x31
> >[ 71.368390] [<ffffffff8100214a>] ? do_signal+0x3c/0x504
> >[ 71.368395] [<ffffffff81002637>] ? do_notify_resume+0x25/0x68
> >[ 71.368400] [<ffffffff81370ca2>] ? int_signal+0x12/0x17
> >[ 71.368403] ---[ end trace c3af132f2e9b580b ]---
> >[ 71.368405] ------------[ cut here ]------------
> >[ 71.368417] WARNING: at fs/ext4/namei.c:1235 ext4_find_entry+0x3d/0x3e3 [ext4]()
> >[ 71.368419] Modules linked in: hidp hid fuse ecb ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc parport_pc ppdev lp parport cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace rfcomm bnep binfmt_misc uinput loop ecryptfs uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev btusb bluetooth snd_hda_codec_hdmi snd_hda_codec_realtek joydev coretemp kvm_intel kvm crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support arc4 iwldvm snd_hda_intel snd_hda_codec mac80211 snd_hwdep thinkpad_acp
i snd_pcm pcspkr snd_page_alloc nvram snd_seq snd_timer snd_seq_device iwlwifi microcode i915 ehci_pci psmouse snd serio_raw evdev i2c_i801 drm_kms_helper ehci_hcd cfg80211 lpc_ich mfd_core s
> oundcore drm rfkill battery i2c_algo_bit ac i2c_core wmi video
> acpi_cpufreq mperf processor button ext4 crc16 jbd2 mbcache dm_mod
> sg sd_mod crc_t10dif sdhci_pci ahci sdhci libahci mmc_core libata
> e1000e ptp pps_core scsi_mod xhci_hcd usbcore usb_common thermal
> thermal_sys
> >[ 71.368517] CPU: 3 PID: 4560 Comm: test_assert Tainted: G W 3.10.0 #3
> >[ 71.368519] Hardware name: LENOVO 2306CTO/2306CTO, BIOS G2ET94WW (2.54 ) 04/30/2013
> >[ 71.368521] ffffffff8136cf25 0000000000000000 ffffffff8102fbad ffffffff818b8682
> >[ 71.368526] 0000000000000000 00000000d4cbf828 ffff8803f48fbc70 ffff8803d4decb40
> >[ 71.368530] ffff8803d4decac0 0000000000000000 ffffffffa015721e ffff8803d4cbf8f0
> >[ 71.368535] Call Trace:
> >[ 71.368539] [<ffffffff8136cf25>] ? dump_stack+0xd/0x17
> >[ 71.368544] [<ffffffff8102fbad>] ? warn_slowpath_common+0x5f/0x77
> >[ 71.368560] [<ffffffffa015721e>] ? ext4_find_entry+0x3d/0x3e3 [ext4]
> >[ 71.368577] [<ffffffffa01575ee>] ? ext4_lookup+0x2a/0x126 [ext4]
> >[ 71.368592] [<ffffffffa01575ee>] ? ext4_lookup+0x2a/0x126 [ext4]
> >[ 71.368597] [<ffffffff8102fbb2>] ? warn_slowpath_common+0x64/0x77
> >[ 71.368612] [<ffffffffa0157615>] ? ext4_lookup+0x51/0x126 [ext4]
> >[ 71.368616] [<ffffffff8110f59f>] ? spin_unlock+0x5/0x6
> >[ 71.368620] [<ffffffff8111141e>] ? d_alloc+0x61/0x69
> >[ 71.368625] [<ffffffff81107f5d>] ? lookup_real+0x24/0x3f
> >[ 71.368629] [<ffffffff811083a4>] ? __lookup_hash+0x2a/0x31
> >[ 71.368635] [<ffffffff8110bffe>] ? lookup_one_len+0xd3/0xe5
> >[ 71.368642] [<ffffffffa05c81f9>] ? ecryptfs_lookup+0x117/0x2eb [ecryptfs]
> >[ 71.368647] [<ffffffff81107f5d>] ? lookup_real+0x24/0x3f
> >[ 71.368652] [<ffffffff8110b6e9>] ? do_last+0x509/0xa16
> >[ 71.368657] [<ffffffff81109492>] ? __inode_permission+0x2f/0x95
> >[ 71.368662] [<ffffffff8110bcba>] ? path_openat+0xc4/0x335
> >[ 71.368667] [<ffffffff810cb77c>] ? __inc_zone_state+0x3f/0x47
> >[ 71.368672] [<ffffffff8110c1d6>] ? do_filp_open+0x2a/0x6e
> >[ 71.368678] [<ffffffff81141c6e>] ? cn_printf+0xda/0xea
> >[ 71.368682] [<ffffffff810ffc2b>] ? file_open_name+0x27/0x2d
> >[ 71.368686] [<ffffffff810ffc53>] ? filp_open+0x22/0x27
> >[ 71.368691] [<ffffffff811424dc>] ? do_coredump+0x85e/0xbe6
> >[ 71.368696] [<ffffffff810b61cc>] ? find_get_page+0x3e/0x5f
> >[ 71.368701] [<ffffffff8136f4c9>] ? _cond_resched+0x6/0x1a
> >[ 71.368707] [<ffffffff8103f892>] ? get_signal_to_deliver+0x46a/0x4a5
> >[ 71.368711] [<ffffffff8103db63>] ? signal_wake_up_state+0x1e/0x31
> >[ 71.368716] [<ffffffff8100214a>] ? do_signal+0x3c/0x504
> >[ 71.368721] [<ffffffff81002637>] ? do_notify_resume+0x25/0x68
> >[ 71.368724] [<ffffffff81370ca2>] ? int_signal+0x12/0x17
> >[ 71.368727] ---[ end trace c3af132f2e9b580c ]---
> >[ 71.368741] ------------[ cut here ]------------
> >[ 71.368806] kernel BUG at fs/buffer.c:1234!
> >[ 71.368859] invalid opcode: 0000 [#1] SMP
> >[ 71.368916] Modules linked in: hidp hid fuse ecb ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc parport_pc ppdev lp parport cpufreq_conservative cpufreq_powersave cpufreq_stats cpufreq_userspace rfcomm bnep binfmt_misc uinput loop ecryptfs uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev btusb bluetooth snd_hda_codec_hdmi snd_hda_codec_realtek joydev coretemp kvm_intel kvm crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support arc4 iwldvm snd_hda_intel snd_hda_codec mac80211 snd_hwdep thinkpad_acp
i snd_pcm pcspkr snd_page_alloc nvram snd_seq snd_timer snd_seq_device iwlwifi microcode i915 ehci_pci psmouse snd serio_raw evdev i2c_i801 drm_kms_helper ehci_hcd cfg80211 lpc_ich mfd_core s
> oundcore drm rfkill battery i2c_algo_bit ac i2c_core wmi video
> acpi_cpufreq mperf processor button ext4 crc16 jbd2 mbcache dm_mod
> sg sd_mod crc_t10dif sdhci_pci ahci sdhci libahci mmc_core libata
> e1000e ptp pps_core scsi_mod xhci_hcd usbcore usb_common thermal
> thermal_sys
> >[ 71.370597] CPU: 3 PID: 4560 Comm: test_assert Tainted: G W 3.10.0 #3
> >[ 71.370685] Hardware name: LENOVO 2306CTO/2306CTO, BIOS G2ET94WW (2.54 ) 04/30/2013
> >[ 71.370777] task: ffff8804097055e0 ti: ffff8803d4cbe000 task.ti: ffff8803d4cbe000
> >[ 71.370868] RIP: 0010:[<ffffffff81123bfa>] [<ffffffff81123bfa>] check_irqs_on+0x7/0xa
> >[ 71.370971] RSP: 0018:ffff8803d4cbf540 EFLAGS: 00010046
> >[ 71.371037] RAX: 0000000000000096 RBX: 0000000000001000 RCX: 0000000000000000
> >[ 71.371122] RDX: 0000000000001000 RSI: 0000000000a8207b RDI: ffff88041d7c7740
> >[ 71.371208] RBP: ffff88041d7c7740 R08: 0000000001400000 R09: 0000000000000000
> >[ 71.371294] R10: 0000000000000000 R11: ffffffff814dae00 R12: 0000000000a8207b
> >[ 71.371380] R13: 0000000000000001 R14: 0000000000a8207b R15: 0000000000000000
> >[ 71.371467] FS: 00007f3a5c944700(0000) GS:ffff88041e2c0000(0000) knlGS:0000000000000000
> >[ 71.371565] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> >[ 71.371634] CR2: 00007f3a5c425070 CR3: 00000003f346f000 CR4: 00000000001407e0
> >[ 71.371720] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> >[ 71.371806] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> >[ 71.371891] Stack:
> >[ 71.371917] ffffffff81123e41 0000000000000001 ffff8803f3fe8358 ffff8803d4cbf5b0
> >[ 71.372017] ffffffffa014e10d ffff8803d4cbf6b4 ffff8803d4cbf630 ffff8803d4cbf630
> >[ 71.372117] ffff8803f48fbc70 0000000000000000 ffff8803d4cbf6b4 0000000000001000
> >[ 71.372217] Call Trace:
> >[ 71.372253] [<ffffffff81123e41>] ? __find_get_block+0x17/0x162
> >[ 71.372341] [<ffffffffa014e10d>] ? __check_block_validity.constprop.53+0x27/0x65 [ext4]
> >[ 71.372441] [<ffffffff81124b7d>] ? __getblk+0x1b/0x275
> >[ 71.372519] [<ffffffffa014fc55>] ? ext4_getblk+0x9b/0x15d [ext4]
> >[ 71.372596] [<ffffffff8136ff4d>] ? _raw_spin_trylock+0x5/0x13
> >[ 71.372681] [<ffffffffa014fd24>] ? ext4_bread+0xd/0x61 [ext4]
> >[ 71.372755] [<ffffffff81031549>] ? console_unlock+0x2c6/0x303
> >[ 71.372839] [<ffffffffa0155f2f>] ? __ext4_read_dirblock+0x35/0x251 [ext4]
> >[ 71.372935] [<ffffffffa015636c>] ? dx_probe+0x38/0x308 [ext4]
> >[ 71.373008] [<ffffffff81005039>] ? show_trace_log_lvl+0x2c/0x56
> >[ 71.373094] [<ffffffffa01570cc>] ? ext4_dx_find_entry+0x3d/0x152 [ext4]
> >[ 71.373179] [<ffffffff8136a902>] ? printk+0x4f/0x54
> >[ 71.373252] [<ffffffffa015721e>] ? ext4_find_entry+0x3d/0x3e3 [ext4]
> >[ 71.373333] [<ffffffff8102fbb2>] ? warn_slowpath_common+0x64/0x77
> >[ 71.373421] [<ffffffffa0157313>] ? ext4_find_entry+0x132/0x3e3 [ext4]
> >[ 71.373515] [<ffffffffa01575ee>] ? ext4_lookup+0x2a/0x126 [ext4]
> >[ 71.373601] [<ffffffffa01575ee>] ? ext4_lookup+0x2a/0x126 [ext4]
> >[ 71.376994] [<ffffffff8102fbb2>] ? warn_slowpath_common+0x64/0x77
> >[ 71.380410] [<ffffffffa0157615>] ? ext4_lookup+0x51/0x126 [ext4]
> >[ 71.383809] [<ffffffff8110f59f>] ? spin_unlock+0x5/0x6
> >[ 71.387089] [<ffffffff81107f5d>] ? lookup_real+0x24/0x3f
> >[ 71.390236] [<ffffffff811083a4>] ? __lookup_hash+0x2a/0x31
> >[ 71.393253] [<ffffffff8110bffe>] ? lookup_one_len+0xd3/0xe5
> >[ 71.396152] [<ffffffffa05c81f9>] ? ecryptfs_lookup+0x117/0x2eb [ecryptfs]
> >[ 71.398948] [<ffffffff81107f5d>] ? lookup_real+0x24/0x3f
> >[ 71.401614] [<ffffffff8110b6e9>] ? do_last+0x509/0xa16
> >[ 71.404152] [<ffffffff81109492>] ? __inode_permission+0x2f/0x95
> >[ 71.406579] [<ffffffff8110bcba>] ? path_openat+0xc4/0x335
> >[ 71.408960] [<ffffffff810cb77c>] ? __inc_zone_state+0x3f/0x47
> >[ 71.411307] [<ffffffff8110c1d6>] ? do_filp_open+0x2a/0x6e
> >[ 71.413623] [<ffffffff81141c6e>] ? cn_printf+0xda/0xea
> >[ 71.415889] [<ffffffff810ffc2b>] ? file_open_name+0x27/0x2d
> >[ 71.418123] [<ffffffff810ffc53>] ? filp_open+0x22/0x27
> >[ 71.420317] [<ffffffff811424dc>] ? do_coredump+0x85e/0xbe6
> >[ 71.422516] [<ffffffff810b61cc>] ? find_get_page+0x3e/0x5f
> >[ 71.424701] [<ffffffff8136f4c9>] ? _cond_resched+0x6/0x1a
> >[ 71.426876] [<ffffffff8103f892>] ? get_signal_to_deliver+0x46a/0x4a5
> >[ 71.429073] [<ffffffff8103db63>] ? signal_wake_up_state+0x1e/0x31
> >[ 71.431238] [<ffffffff8100214a>] ? do_signal+0x3c/0x504
> >[ 71.433364] [<ffffffff81002637>] ? do_notify_resume+0x25/0x68
> >[ 71.435483] [<ffffffff81370ca2>] ? int_signal+0x12/0x17
> >[ 71.437588] Code: db b6 6d 48 c1 fe 03 48 0f af f0 48 b8 00 00 00 00 00 88 ff ff 48 c1 e6 0c 48 01 c6 48 01 f2 48 89 57 28 c3 9c 58 f6 c4 02 75 02 <0f> 0b c3 55 48 c7 c5 60 f3 00 00 83 c8 ff 53 31 db 41 52 65 c7
> >[ 71.442432] RIP [<ffffffff81123bfa>] check_irqs_on+0x7/0xa
> >[ 71.444766] RSP <ffff8803d4cbf540>
> >[ 71.463545] ---[ end trace c3af132f2e9b580d ]---
>
> --
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--
Jan Kara <jack@suse.cz>
SUSE Labs, CR
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: kernel BUG at fs/buffer.c:1234!
2013-07-08 14:12 ` Jan Kara
@ 2013-07-10 4:05 ` Dustin Lundquist
0 siblings, 0 replies; 7+ messages in thread
From: Dustin Lundquist @ 2013-07-10 4:05 UTC (permalink / raw)
To: Jan Kara; +Cc: Theodore Ts'o, linux-ext4
On 07/08/2013 07:12 AM, Jan Kara wrote:
> Hum, so it's interesting that ecryptfs_lookup() WARN_ON() didn't trigger
> but ext4 one did. Strangely enough I don't see a place in the call chain
> where irqs could get disabled. Can you maybe trace using irq tracing at
> which point exactly do we disable interrupts?
I'm not familiar with irq tracing, but I traced it as far as a function
pointer in a macro at fs/ecryptfs/keystore.c:840 then tried blacklisting
the aesni_intel module and I haven't been able to reproduce it since.
At this point I would be interested if anyone else can reproduce it on
another Intel Ivy Bridge system with aesni and Linux 3.10:
1. Setup an ecryptfs mount over an ext4 file system
2. Cause a program running inside ecryptfs mount to core dump
Thanks,
Dustin Lundquist
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2013-07-10 4:05 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-06-19 16:41 kernel BUG at fs/buffer.c:1234! Dustin Lundquist
2013-06-19 18:55 ` Theodore Ts'o
2013-06-20 16:20 ` Dustin Lundquist
2013-06-20 16:34 ` Theodore Ts'o
2013-07-04 20:31 ` Dustin Lundquist
2013-07-08 14:12 ` Jan Kara
2013-07-10 4:05 ` Dustin Lundquist
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