Hello!

On 3/15/21 10:34 AM, Anatoly Pugachev wrote:

+ /usr/sbin/grub-probe --target=device /
+ GRUB_DEVICE=/dev/sda2
+ /usr/sbin/grub-probe --device /dev/sda2 --target=fs_uuid
[ 1330.951329] watchdog: BUG: soft lockup - CPU#0 stuck for 22s!
[grub-probe:443]
[ 1331.046350] Modules linked in: drm(E) drm_panel_orientation_quirks(E)
i2c_core(E) sg(E) envctrl(E) display7seg(E) flash(E) fuse(E) configfs(E)
ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc16(E) mbcache(E) jbd2(E)
crc32c_generic(E) sd_mod(E) t10_pi(E) crc_t10dif(E) st(E)
crct10dif_generic(E) crct10dif_common(E) sym53c8xx(E)
scsi_transport_spi(E) scsi_mod(E) sunhme(E)
[ 1331.475596] CPU: 0 PID: 443 Comm: grub-probe Tainted: G E
5.10.0-4-sparc64 #1 Debian 5.10.19-1
[ 1331.606055] TSTATE: 0000009911001601 TPC: 0000000000950920 TNPC:
0000000000950924 Y: 00000000 Tainted: G E
[ 1331.753728] TPC: <misc_open+0x40/0x180>
[ 1331.804124] g0: fffff800065e3140 g1: 000000001005a830 g2:
0000000000000000 g3: 000000000149fa90
[ 1331.918504] g4: fffff80009bde780 g5: 00000000604a4edc g6:
fffff8000a1ac000 g7: 000000000fa664c8
[ 1332.032984] o0: 0000000000f2c960 o1: fffff8000a1af8ec o2:
fffff80004275b50 o3: 0000000000000000
[ 1332.147464] o4: 0000000000000000 o5: 0000000000000000 sp:
fffff8000a1aef81 ret_pc: 0000000000950900
[ 1332.266539] RPC: <misc_open+0x20/0x180>
[ 1332.316950] l0: 0000000000f2c800 l1: 0000000000000000 l2:
0000000000668200 l3: 000000064b73605f
[ 1332.431439] l4: 0000000000020000 l5: fffff8000a1af8f0 l6:
0000000000e1a000 l7: 0000000000000001
[ 1332.545917] i0: fffff8000b813d90 i1: fffff80009bad100 i2:
0000000000f2c800 i3: 0000000000f2c978
[ 1332.660398] i4: 00000000000000ec i5: 000000001005a818 i6:
fffff8000a1af031 i7: 0000000000668e38
[ 1332.774892] I7: <chrdev_open+0x98/0x1e0>
[ 1332.826436] Call Trace:
[ 1332.858473] [<0000000000668e38>] chrdev_open+0x98/0x1e0
[ 1332.927215] [<000000000065e430>] do_dentry_open+0x170/0x420
[ 1333.000505] [<0000000000660068>] vfs_open+0x28/0x40
[ 1333.064670] [<0000000000674948>] path_openat+0x988/0x1100
[ 1333.135679] [<00000000006773d0>] do_filp_open+0x50/0x100
[ 1333.205549] [<0000000000660330>] do_sys_openat2+0x70/0x180
[ 1333.277710] [<0000000000660868>] sys_openat+0x48/0xc0
[ 1333.344164] [<0000000000406174>] linux_sparc_syscall+0x34/0x44
~
Type 'go' to resume
ok

This kernel OOPS (backtrace) should be reported to sparclinux@ , linux-kernel@ (lkml) and linux-fsdevel@ (vfs) linux kernel mailing
lists.

It should be verified that this issue is 100% reproducible using the upstream kernel. If, yes, Dennis should bisect the problem to find which commit intro- duced the problem.

Anything else won't really get us any further.

Adrian

--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Mon, Mar 15, 2021 at 4:59 AM Dennis Clarke <dclarke@blastwave.org> wrote:

While digging around here I saw that update-grub will lead to a lockup
every time. So I simply changed /usr/sbin/grub-mkconfig script to
allow me to see everything that happens.

That gets me to :

/usr/sbin/grub-probe --device /dev/sda2 --target=fs_uuid

which falls to pieces perfectly :

root@eros:~#
root@eros:~# uptime
01:09:40 up 20 min, 2 users, load average: 0.07, 0.14, 0.48
root@eros:~# /usr/sbin/grub-mkconfig -o /boot/grub/grub.cfg
+ prefix=/usr
+ exec_prefix=/usr
+ datarootdir=/usr/share
+ prefix=/usr
+ exec_prefix=/usr
+ sbindir=/usr/sbin
+ bindir=/usr/bin
+ sysconfdir=/etc
+ PACKAGE_NAME=GRUB
+ PACKAGE_VERSION=2.04-16
+ host_os=linux-gnu
+ datadir=/usr/share
+ [ x = x ]
+ pkgdatadir=/usr/share/grub
+ export pkgdatadir
+ grub_cfg=
+ grub_mkconfig_dir=/etc/grub.d
+ basename /usr/sbin/grub-mkconfig
+ self=grub-mkconfig
+ grub_probe=/usr/sbin/grub-probe
+ grub_file=/usr/bin/grub-file
+ grub_editenv=/usr/bin/grub-editenv
+ grub_script_check=/usr/bin/grub-script-check
+ export TEXTDOMAIN=grub
+ export TEXTDOMAINDIR=/usr/share/locale
+ . /usr/share/grub/grub-mkconfig_lib
+ prefix=/usr
+ exec_prefix=/usr
+ datarootdir=/usr/share
+ datadir=/usr/share
+ bindir=/usr/bin
+ sbindir=/usr/sbin
+ [ x/usr/share/grub = x ]
+ test x/usr/sbin/grub-probe = x
+ test x/usr/bin/grub-file = x
+ test x = x
+ grub_mkrelpath=/usr/bin/grub-mkrelpath
+ which gettext
+ :
+ grub_tab=
+ test 2 -gt 0
+ option=-o
+ shift
+ argument -o /boot/grub/grub.cfg
+ opt=-o
+ shift
+ test 1 -eq 0
+ echo /boot/grub/grub.cfg
+ grub_cfg=/boot/grub/grub.cfg
+ shift
+ test 0 -gt 0
+ [ x = x ]
+ id -u
+ EUID=0
+ [ 0 != 0 ]
+ set /usr/sbin/grub-probe dummy
+ test -f /usr/sbin/grub-probe
+ :
+ /usr/sbin/grub-probe --target=device /
+ GRUB_DEVICE=/dev/sda2
+ /usr/sbin/grub-probe --device /dev/sda2 --target=fs_uuid
[ 1330.951329] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [grub-probe:443]
[ 1331.046350] Modules linked in: drm(E) drm_panel_orientation_quirks(E) i2c_core(E) sg(E) envctrl(E) display7seg(E) flash(E) fuse(E) configfs(E) ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc16(E) mbcache(E) jbd2(E) crc32c_generic(E) sd_mod(E) t10_pi(E) crc_t10dif(E) st(E) crct10dif_generic(E) crct10dif_common(E) sym53c8xx(E)
scsi_transport_spi(E) scsi_mod(E) sunhme(E)
[ 1331.475596] CPU: 0 PID: 443 Comm: grub-probe Tainted: G E
5.10.0-4-sparc64 #1 Debian 5.10.19-1
[ 1331.606055] TSTATE: 0000009911001601 TPC: 0000000000950920 TNPC: 0000000000950924 Y: 00000000 Tainted: G E
[ 1331.753728] TPC: <misc_open+0x40/0x180>
[ 1331.804124] g0: fffff800065e3140 g1: 000000001005a830 g2:
0000000000000000 g3: 000000000149fa90
[ 1331.918504] g4: fffff80009bde780 g5: 00000000604a4edc g6:
fffff8000a1ac000 g7: 000000000fa664c8
[ 1332.032984] o0: 0000000000f2c960 o1: fffff8000a1af8ec o2:
fffff80004275b50 o3: 0000000000000000
[ 1332.147464] o4: 0000000000000000 o5: 0000000000000000 sp:
fffff8000a1aef81 ret_pc: 0000000000950900
[ 1332.266539] RPC: <misc_open+0x20/0x180>
[ 1332.316950] l0: 0000000000f2c800 l1: 0000000000000000 l2:
0000000000668200 l3: 000000064b73605f
[ 1332.431439] l4: 0000000000020000 l5: fffff8000a1af8f0 l6:
0000000000e1a000 l7: 0000000000000001
[ 1332.545917] i0: fffff8000b813d90 i1: fffff80009bad100 i2:
0000000000f2c800 i3: 0000000000f2c978
[ 1332.660398] i4: 00000000000000ec i5: 000000001005a818 i6:
fffff8000a1af031 i7: 0000000000668e38
[ 1332.774892] I7: <chrdev_open+0x98/0x1e0>
[ 1332.826436] Call Trace:
[ 1332.858473] [<0000000000668e38>] chrdev_open+0x98/0x1e0
[ 1332.927215] [<000000000065e430>] do_dentry_open+0x170/0x420
[ 1333.000505] [<0000000000660068>] vfs_open+0x28/0x40
[ 1333.064670] [<0000000000674948>] path_openat+0x988/0x1100
[ 1333.135679] [<00000000006773d0>] do_filp_open+0x50/0x100
[ 1333.205549] [<0000000000660330>] do_sys_openat2+0x70/0x180
[ 1333.277710] [<0000000000660868>] sys_openat+0x48/0xc0
[ 1333.344164] [<0000000000406174>] linux_sparc_syscall+0x34/0x44
~
Type 'go' to resume
ok

This kernel OOPS (backtrace) should be reported to sparclinux@ ,
linux-kernel@ (lkml) and linux-fsdevel@ (vfs) linux kernel mailing
lists.
Thanks.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 3/15/21 9:38 AM, John Paul Adrian Glaubitz wrote:

Hello!

On 3/15/21 10:34 AM, Anatoly Pugachev wrote:

+ /usr/sbin/grub-probe --target=device /
+ GRUB_DEVICE=/dev/sda2
+ /usr/sbin/grub-probe --device /dev/sda2 --target=fs_uuid
[ 1330.951329] watchdog: BUG: soft lockup - CPU#0 stuck for 22s!
[grub-probe:443]
[ 1331.046350] Modules linked in: drm(E) drm_panel_orientation_quirks(E) >>> i2c_core(E) sg(E) envctrl(E) display7seg(E) flash(E) fuse(E) configfs(E) >>> ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc16(E) mbcache(E) jbd2(E)
crc32c_generic(E) sd_mod(E) t10_pi(E) crc_t10dif(E) st(E)
crct10dif_generic(E) crct10dif_common(E) sym53c8xx(E)
scsi_transport_spi(E) scsi_mod(E) sunhme(E)
[ 1331.475596] CPU: 0 PID: 443 Comm: grub-probe Tainted: G E
5.10.0-4-sparc64 #1 Debian 5.10.19-1
[ 1331.606055] TSTATE: 0000009911001601 TPC: 0000000000950920 TNPC:
0000000000950924 Y: 00000000 Tainted: G E
[ 1331.753728] TPC: <misc_open+0x40/0x180>
[ 1331.804124] g0: fffff800065e3140 g1: 000000001005a830 g2:
0000000000000000 g3: 000000000149fa90
[ 1331.918504] g4: fffff80009bde780 g5: 00000000604a4edc g6:
fffff8000a1ac000 g7: 000000000fa664c8
[ 1332.032984] o0: 0000000000f2c960 o1: fffff8000a1af8ec o2:
fffff80004275b50 o3: 0000000000000000
[ 1332.147464] o4: 0000000000000000 o5: 0000000000000000 sp:
fffff8000a1aef81 ret_pc: 0000000000950900
[ 1332.266539] RPC: <misc_open+0x20/0x180>
[ 1332.316950] l0: 0000000000f2c800 l1: 0000000000000000 l2:
0000000000668200 l3: 000000064b73605f
[ 1332.431439] l4: 0000000000020000 l5: fffff8000a1af8f0 l6:
0000000000e1a000 l7: 0000000000000001
[ 1332.545917] i0: fffff8000b813d90 i1: fffff80009bad100 i2:
0000000000f2c800 i3: 0000000000f2c978
[ 1332.660398] i4: 00000000000000ec i5: 000000001005a818 i6:
fffff8000a1af031 i7: 0000000000668e38
[ 1332.774892] I7: <chrdev_open+0x98/0x1e0>
[ 1332.826436] Call Trace:
[ 1332.858473] [<0000000000668e38>] chrdev_open+0x98/0x1e0
[ 1332.927215] [<000000000065e430>] do_dentry_open+0x170/0x420
[ 1333.000505] [<0000000000660068>] vfs_open+0x28/0x40
[ 1333.064670] [<0000000000674948>] path_openat+0x988/0x1100
[ 1333.135679] [<00000000006773d0>] do_filp_open+0x50/0x100
[ 1333.205549] [<0000000000660330>] do_sys_openat2+0x70/0x180
[ 1333.277710] [<0000000000660868>] sys_openat+0x48/0xc0
[ 1333.344164] [<0000000000406174>] linux_sparc_syscall+0x34/0x44
~
Type 'go' to resume
ok

This kernel OOPS (backtrace) should be reported to sparclinux@ ,
linux-kernel@ (lkml) and linux-fsdevel@ (vfs) linux kernel mailing
lists.

It should be verified that this issue is 100% reproducible using the upstream kernel. If, yes, Dennis should bisect the problem to find which commit intro- duced the problem.

Anything else won't really get us any further.

yup.

This will take a pile of time.


--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
GreyBeard and suspenders optional

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)