Bug#605357: grub-common: grub-probe segfault in grub_disk_adjust_range

[Julien Danjou]

Package: grub-common
Version: 1.98+20100804-8
Severity: serious

/ is /dev/sde2, nothing weird here.

Here's a full backtrace:

#0  0x0000000000435085 in grub_disk_adjust_range (disk=0x0, sector=0x7fffffffe010, 
    offset=0x7fffffffe008, size=4096) at ../../grub-core/kern/disk.c:360
        part = 0x1010
#1  0x00000000004351d9 in grub_disk_read (disk=0x0, sector=0, offset=0, size=4096, 
    buf=0x6bd6d0) at ../../grub-core/kern/disk.c:393
        tmp_buf = 0x0
        real_offset = 0
#2  0x00000000004078f3 in grub_raid5_recover (array=0x6868e0, disknr=0, buf=0x69b4b0 "", 
    sector=0, size=4096) at ../../grub-core/disk/raid5_recover.c:48
        err = 64
        buf2 = 0x6bd6d0 ""
        i = 1
#3  0x00000000004057a4 in grub_raid_read (disk=0x686cc0, sector=0, size=8, 
    buf=0x69b4b0 "") at ../../grub-core/disk/raid.c:407
        read_size = 8
        next_level = 0
        read_sector = 0
        e = 0
        b = 0
        p = 7
        n = 1
        disknr = 0
        array = 0x6868e0
        err = GRUB_ERR_READ_ERROR
#4  0x0000000000435359 in grub_disk_read (disk=0x686cc0, sector=0, offset=0, size=256, 
    buf=0x7fffffffe2a0) at ../../grub-core/kern/disk.c:439
        data = 0x0
        start_sector = 0
        len = 256
        pos = 0
        tmp_buf = 0x69b4b0 ""
        real_offset = 0
#5  0x00000000004048be in grub_mdraid_detect (disk=0x686cc0, array=0x7fffffffe410, 
    start_sector=0x7fffffffe408) at ../../grub-core/disk/mdraid1x_linux.c:142
        sector = 0
        size = 13674674944
        sb = {magic = 456598646, major_version = 3924610504, feature_map = 2013230210, 
          pad0 = 4160396796, set_uuid = "\212\247\245o\360\252ۉ\214@<\252.%\253O", 
          set_name = "\252\207Ռ\236T;\372\322\376\313{ǵ9\"\327\377c\377_\245\222A\322]|o\221d\222\240", ctime = 2494676255545041851, level = 1735120094, layout = 3950006114, 
          size = 13297700641086735132, chunksize = 2682578142, raid_disks = 3295306323, 
          bitmap_offset = 1048214877, new_level = 3347934811, 
          reshape_position = 7774889662045309302, delta_disks = 3832601734, 
          new_layout = 1770921548, new_chunk = 2816950484, pad1 = "ę+\032", 
          data_offset = 11583333703300887920, data_size = 10275221751711273489, 
          super_offset = 984244538649780840, recovery_offset = 3151007113834776622, 
          dev_number = 3584485342, cnt_corrected_read = 170500724, 
          device_uuid = "\310\355\335U\334\362\253\267\336\366\001\273G\201$_", 
          devflags = 87 'W', pad2 = "\035\244\251\315*Qw", utime = 11630869007482402686, 
          events = 13077670425335307153, resync_offset = 7794127030959215663, 
          sb_csum = 3801921126, max_dev = 3762957838, 
          pad3 = "C_\352(*\370\034\336\352\347\"m m\222!\231\033\352\277\003\231\271\364\272*\337\372g1{m", dev_roles = 0x7fffffffe3a0}
        minor_version = 1 '\001'
#6  0x00000000004060f1 in hook (name=0x686570 "md0") at ../../grub-core/disk/raid.c:704
        disk = 0x686cc0
        array = {number = -7072, level = 32767, layout = 4203088, total_devs = 0, 
          chunk_size = 140737488348960, disk_size = 0, index = 0, uuid_len = 0, 
          uuid = 0x7ffff78d284c "\203=\225\235.", name = 0x7fffffffe550 "", 
          nr_devs = 4430390, allocated_devs = 0, members = 0xffffe440ba490043, 
          next = 0x686ca0, driver = 0x7fffffffe480}
        start_sector = 140737349652032
#7  0x00000000004345c5 in iterate_disk (disk_name=0x686570 "md0")
    at ../../grub-core/kern/device.c:96
        dev = 0x686ca0
        hook = 0x406065 <hook>
        ents = 0x0
#8  0x0000000000404d12 in grub_raid_iterate (hook=0x7fffffffe560)
    at ../../grub-core/disk/raid.c:84
        array = 0x6868e0
#9  0x0000000000434c78 in grub_disk_dev_iterate (hook=0x7fffffffe560)
    at ../../grub-core/kern/disk.c:212
        p = 0x64e2c0
#10 0x000000000043473c in grub_device_iterate (hook=0x406065 <hook>)
    at ../../grub-core/kern/device.c:168
        ents = 0x686360
#11 0x0000000000406190 in grub_raid_register (raid=0x64e290)
    at ../../grub-core/disk/raid.c:723
No locals.
#12 0x0000000000404be6 in grub_mod_init (mod=0x0)
    at ../../grub-core/disk/mdraid1x_linux.c:230
No locals.
#13 0x0000000000404bce in grub_mdraid1x_init ()
    at ../../grub-core/disk/mdraid1x_linux.c:228
No locals.
#14 0x0000000000402d30 in main (argc=3, argv=0x7fffffffe728)
    at ../../util/grub-probe.c:403
        dev_map = 0x0
        argument = 0x7fffffffe96b "/"


-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages grub-common depends on:
ii  base-files              5.10             Debian base system miscellaneous f
ii  dpkg                    1.15.8.6         Debian package management system
ii  gettext-base            0.18.1.1-3       GNU Internationalization utilities
ii  install-info            4.13a.dfsg.1-6   Manage installed documentation in 
ii  libc6                   2.11.2-7         Embedded GNU C Library: Shared lib
ii  libdevmapper1.02.1      2:1.02.48-4      The Linux Kernel Device Mapper use
ii  libfreetype6            2.4.2-2.1        FreeType 2 font engine, shared lib
ii  zlib1g                  1:1.2.3.4.dfsg-3 compression library - runtime

Versions of packages grub-common recommends:
pn  os-prober                     <none>     (no description available)

Versions of packages grub-common suggests:
pn  grub-emu                    <none>       (no description available)
pn  multiboot-doc               <none>       (no description available)
ii  xorriso                     0.5.6.pl00-2 command line iso9660+RR manipulati

-- no debconf information

-- 
Julien Danjou
// ᐰ <julien at danjou.info>   http://julien.danjou.info