I'm on this one:
commit 40d2771c607aab3817f21c394ae39e3fba11aa2f
Author: Edward Shishkin <edward.shishkin@xxxxxxxxx>
Date: Thu Jan 26 13:16:39 2017 +0100
Reiser4: use vmalloc instead of kmalloc to alloacte zhash table
Signed-off-by: Edward Shishkin <edward.shishkin@xxxxxxxxx>
--
Ivan Shapovalov / intelfx /
On 2017-02-27 at 17:17 +0100, Edward Shishkin wrote:
> There are 4 patches for 4.9. Which one do you use?
> Or please provide commit id, if you use git.
>
> Thanks,
> Edward.
>
> On 02/27/2017 05:01 PM, Ivan Shapovalov wrote:
> > Hi,
> >
> > I've just encountered this crash when I was doing a full-fs backup
> > (linux 4.9):
> >
> > [ 3125.760693] BUG: unable to handle kernel NULL pointer
> > dereference at 0000000000000010
> > [ 3125.760722] IP: [<ffffffffc075cf91>] internal_at+0x1/0x30
> > [reiser4]
> > [ 3125.760749] PGD 1dc4d8067
> > [ 3125.760756] PUD 119275067
> > [ 3125.760764] PMD 0
> >
> > [ 3125.760772] Oops: 0000 [#1] PREEMPT SMP
> > [ 3125.760782] Modules linked in: ext4 jbd2 mbcache ctr ccm fuse
> > cmac arc4 acpi_call(O) bnep ipheth btusb uvcvideo btintel bluetooth
> > videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core
> > videodev uas crc16 bbswitch(O) coretemp i
> > ntel_rapl x86_pkg_temp_thermal intel_powerclamp
> > snd_hda_codec_realtek kvm_intel snd_hda_codec_generic mei_wdt
> > snd_hda_codec_hdmi kvm irqbypass crc32_pclmul ghash_clmulni_intel
> > iTCO_wdt aesni_intel iTCO_vendor_support aes_x86_64 lrw gf128mul
> > ath10k_pci snd_hda_intel glue_helper ath10k_core snd_hda_codec
> > ablk_helper cryptd ath mac80211 cfg80211 psmouse snd_hwdep
> > snd_hda_core thinkpad_acpi input_leds pcspkr e1000e i2c_i801
> > snd_pcm i2c_smbus nvram mei_me snd_timer mei rtsx_pci_ms lpc_ich
> > snd memstick ptp led_class pps_core tpm_tis hwmon tpm_tis_core
> > rfkill wmi soundcore
> > [ 3125.761006] thermal ac tpm evdev battery sch_fq_codel
> > vboxnetflt(O) vboxnetadp(O) vboxpci(O) vboxdrv(O) usbserial
> > usbip_host usbip_core sg efivarfs ip_tables x_tables autofs4
> > reiser4 sd_mod hid_logitech_hidpp hid_logitech_dj usbhid hid
> > usb_storage rtsx_pci_sdmmc mmc_core crc32c_intel ahci libahci
> > libata xhci_pci serio_raw ehci_pci scsi_mod xhci_hcd ehci_hcd
> > rtsx_pci mfd_core usbcore usb_common i915 video backlight button
> > intel_gtt i2c_algo_bit drm_kms_helper syscopyarea sysfillrect
> > sysimgblt fb_sys_fops drm agpgart
> > [ 3125.761152] CPU: 2 PID: 8033 Comm: borg Tainted:
> > G O 4.9.0-pf5-intelfx-00118-g3ef102e15022 #1
> > [ 3125.761173] Hardware name: LENOVO 20BEA008RT/20BEA008RT, BIOS
> > GMET75WW (2.23 ) 03/16/2016
> > [ 3125.761191] task: ffff9a35d33aa4c0 task.stack: ffffaf93c3fac000
> > [ 3125.761205] RIP: 0010:[<ffffffffc075cf91>] [<ffffffffc075cf91>]
> > internal_at+0x1/0x30 [reiser4]
> > [ 3125.761231] RSP: 0018:ffffaf93c3faf978 EFLAGS: 00010202
> > [ 3125.761243] RAX: 00000000000003a8 RBX: ffffaf93c3faf9d8 RCX:
> > ffffffffc0774980
> > [ 3125.761259] RDX: ffff9a3601130000 RSI: ffffaf93c3faf9d8 RDI:
> > 0000000000000000
> > [ 3125.761275] RBP: ffff9a35886035a0 R08: 0000000000000000 R09:
> > 0000000000000000
> > [ 3125.761291] R10: ffffffffc0750300 R11: 0000000000000000 R12:
> > ffffaf93c3fafb40
> > [ 3125.761308] R13: 0000000000000001 R14: ffffaf93c3faf9d8 R15:
> > 0000000000000000
> > [ 3125.761324] FS: 00007f71f7e82400(0000)
> > GS:ffff9a373e280000(0000) knlGS:0000000000000000
> > [ 3125.761342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > [ 3125.761355] CR2: 0000000000000010 CR3: 0000000215878000 CR4:
> > 00000000001406e0
> > [ 3125.761371] Stack:
> > [ 3125.761377] ffffaf93c3faf9d8 ffffffffc075d149 ffff9a3601130000
> > ffffffffc07519b0
> > [ 3125.761397] ffffaf93c3faf9d8 000000000000000f ffff9a3601130010
> > ffffd79000000001
> > [ 3125.761417] 00000000006f7534 0043616e6f6e2057 000000000006f75f
> > ffffffffffffffff
> > [ 3125.761437] Call Trace:
> > [ 3125.761449] [<ffffffffc075d149>] ?
> > has_pointer_to_internal+0x9/0x20 [reiser4]
> > [ 3125.761471] [<ffffffffc07519b0>] ?
> > find_disk_cluster+0x190/0x3a0 [reiser4]
> > [ 3125.761492] [<ffffffffc075f265>] ?
> > do_readpage_ctail+0x235/0x490 [reiser4]
> > [ 3125.761511] [<ffffffffc0751dd8>] ?
> > prepare_page_cluster+0x178/0x270 [reiser4]
> > [ 3125.761531] [<ffffffffc075f5a5>] ?
> > ctail_readpages_filler+0xe5/0x250 [reiser4]
> > [ 3125.761549] [<ffffffffa1123153>] ? read_cache_pages+0xb3/0x180
> > [ 3125.761567] [<ffffffffc075f4c0>] ?
> > do_readpage_ctail+0x490/0x490 [reiser4]
> > [ 3125.761584] [<ffffffffa1174657>] ? __kmalloc+0x167/0x1d0
> > [ 3125.761602] [<ffffffffc075f963>] ? readpages_ctail+0x133/0x340
> > [reiser4]
> > [ 3125.761621] [<ffffffffc0753e44>] ?
> > readpages_cryptcompress+0x34/0x60 [reiser4]
> > [ 3125.761638] [<ffffffffa11233d7>] ?
> > __do_page_cache_readahead+0x1b7/0x2a0
> > [ 3125.761655] [<ffffffffa1123588>] ?
> > ondemand_readahead+0xc8/0x240
> > [ 3125.761670] [<ffffffffa1113a0b>] ?
> > pagecache_get_page+0x2b/0x2a0
> > [ 3125.761685] [<ffffffffa1116729>] ?
> > generic_file_read_iter+0x619/0x880
> > [ 3125.761701] [<ffffffffa11959d2>] ? new_sync_read+0xd2/0x120
> > [ 3125.761718] [<ffffffffc0753ecc>] ? read_cryptcompress+0x5c/0xa0
> > [reiser4]
> > [ 3125.761738] [<ffffffffc074e784>] ?
> > reiser4_read_dispatch+0x54/0x130 [reiser4]
> > [ 3125.761755] [<ffffffffa1195d15>] ? vfs_read+0x85/0x150
> > [ 3125.761768] [<ffffffffa1197c2d>] ? SyS_read+0x4d/0xc0
> > [ 3125.761782] [<ffffffffa11a8b76>] ? SyS_ioctl+0x36/0x70
> > [ 3125.761795] [<ffffffffa1519560>] ?
> > entry_SYSCALL_64_fastpath+0x13/0x94
> > [ 3125.761810] Code: 76 c0 48 c7 04 24 65 fb 76 c0 bb fb ff ff ff
> > e8 7d 55 9b e0 eb 96 0f 1f 40 00 41 b8 01 00 00 00 31 c9 48 89 f2
> > e9 b0 e7 fc ff 53 <83> 7f 10 ff 48 89 fb 74 09 48 89 df 5b e9 fd 7d
> > 00 00 e8 d8 7d
> > [ 3125.761910] RIP [<ffffffffc075cf91>] internal_at+0x1/0x30
> > [reiser4]
> > [ 3125.761930] RSP <ffffaf93c3faf978>
> > [ 3125.761939] CR2: 0000000000000010
> > [ 3125.774256] ---[ end trace b060c22fa881072e ]---
> >
> >
> > Is this something known to you? I'll try to reproduce, but not yet.
> >
>
> Attachment:
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