Error while reading linear address

[r-jenish]

Kernel Version: 3.2.0-4-versatile Wheezy
Command while reading linear address:

./r2k_u -i 1 -a 0xc1002000 -b 1

crashes.
Here is the dmesg log:

[ 7206.515606] r2k: pmd_table
[ 7206.517926] Unable to handle kernel paging request at virtual address 2f697008
[ 7206.523900] pgd = c7ae4000
[ 7206.526274] [2f697008] *pgd=00000000
[ 7206.528844] Internal error: Oops: 5 [#8]
[ 7206.531893] Modules linked in: r2kmod(O) nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc ipv6 loop rtc_ds1307 sg i2c_versatile smc91x i2c_algo_bit psmouse sr_mod evdev mii i2c_core cdrom ext4 crc16 mbcache jbd2 sd_mod crc_t10dif sym53c8xx scsi_transport_spi scsi_mod
[ 7206.543764] CPU: 0    Tainted: G      D    O  (3.2.0-4-versatile #1 Debian 3.2.51-1)
[ 7206.548912] PC is at check_addr+0x90/0xc8 [r2kmod]
[ 7206.552343] LR is at check_addr+0x78/0xc8 [r2kmod]
[ 7206.554789] pc : [<bf2faf9c>]    lr : [<bf2faf84>]    psr: 20000013
[ 7206.554806] sp : c72e5e90  ip : c78e9c80  fp : 00000001
[ 7206.559761] r10: 00000000  r9 : c72e4000  r8 : c0003040
[ 7206.563227] r7 : 00000002  r6 : 00000002  r5 : 00000608  r4 : c0000000
[ 7206.565682] r3 : 2f697000  r2 : c72e5e84  r1 : bf2fbbad  r0 : 00000024
[ 7206.568236] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[ 7206.570799] Control: 00093177  Table: 07ae4000  DAC: 00000015
[ 7206.573348] Process a.out (pid: 2409, stack limit = 0xc72e4270)
[ 7206.575825] Stack: (0xc72e5e90 to 0xc72e6000)
[ 7206.578380] 5e80:                                     c6dd2a40 bed8e71c c72e4000 00000003
[ 7206.583915] 5ea0: 00000000 bf2fa2e8 bed8e774 c00d0770 c72e5ecc c002aeb8 00000000 c780e080
[ 7206.588788] 5ec0: c74b1e38 c72f6800 00000001 00000000 c7aa380f c72e5f78 00000001 c7a8b000
[ 7206.594099] 5ee0: ffffff9c c0012608 00000000 c00d0b7c 00000000 c03948d0 0165f004 bed8e71c
[ 7206.599274] 5f00: c7adf0e8 00000003 00000003 00000000 c72e4000 00000000 bed8e774 c00d2b2c
[ 7206.604494] 5f20: c78ef354 c00aabec c6e16a3c 0165f000 0165f000 c6d120a0 c78ef230 00000021
[ 7206.610618] 5f40: 00100077 c00abf54 c6e16a34 00000000 00000000 0000165f 00000000 c78ec3a0
[ 7206.617096] 5f60: c7a8b000 c78ec3a0 bed8e71c 80046901 00000003 00000000 c72e4000 00000000
[ 7206.623055] 5f80: bed8e774 c00d2bfc 00000003 00000000 00000000 00000000 00000000 00000036
[ 7206.629068] 5fa0: c0012608 c0012460 00000000 00000000 00000003 80046901 bed8e71c bed8e71c
[ 7206.635182] 5fc0: 00000000 00000000 00000000 00000036 00000000 00000000 b6f5a000 bed8e774
[ 7206.641997] 5fe0: 00000000 bed8e700 00008be4 b6ec395c 60000010 00000003 00000000 00000000
[ 7206.648927] [<bf2faf9c>] (check_addr+0x90/0xc8 [r2kmod]) from [<bf2fa2e8>] (io_ioctl+0xd0/0xcf4 [r2kmod])
[ 7206.656755] [<bf2fa2e8>] (io_ioctl+0xd0/0xcf4 [r2kmod]) from [<c00d2b2c>] (do_vfs_ioctl+0x49c/0x520)
[ 7206.664652] [<c00d2b2c>] (do_vfs_ioctl+0x49c/0x520) from [<c00d2bfc>] (sys_ioctl+0x4c/0x6c)
[ 7206.672109] [<c00d2bfc>] (sys_ioctl+0x4c/0x6c) from [<c0012460>] (ret_fast_syscall+0x0/0x2c)
[ 7206.679419] Code: e3c33eff e1a07ba7 e3c3300f e2433440 (e7930107) 
[ 7206.684311] ---[ end trace bc57986abf1ff252 ]---

Full log of dmesg: http://sprunge.us/cOOI

[jpenalbae]

I would not worry too much about this as long as it does not cause a kernel panic.

Anyway I thought that @leberus made some extra checks to avoid these messages...

[leberus]

Yes, i made them. I need to check out why this happened.

…

On 23 December 2016 at 19:38, Jaime Peñalba ***@***.***> wrote: I would not worry too much about this as long as it does not cause a kernel panic. Anyway I thought that @leberus <https://github.com/leberus> made some extra checks to avoid these messages... — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#15 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AH3YFWiLAiC0T3XFMfhBmxwvQ_BDHA-6ks5rLBUXgaJpZM4LU9fa> .