Bug#891773: Acknowledgement (grub-pc: segfault when running /etc/kernel/postrm.d/zz-update-grub)

[Diederik de Haas]

Figured out it was 'update-grub' where the segfault occured.
Installed grub-common-dbgsym and grub2-common-dbgsym, but that didn't result in more info

But in /var/log/kern.log I noticed the following:

Mar  1 11:43:09 bagend kernel: [ 1763.332006] device-mapper: uevent: version 1.0.3
Mar  1 11:43:09 bagend kernel: [ 1763.332073] device-mapper: ioctl: 4.37.0-ioctl (2017-09-20) initialised: dm-devel at redhat.com
Mar  1 11:43:10 bagend kernel: [ 1764.036904] show_signal_msg: 41 callbacks suppressed
Mar  1 11:43:10 bagend kernel: [ 1764.036907] grub-probe[5331]: segfault at 0 ip 00007f0e7bb76c02 sp 00007fffbc98da08 error 4 in libc-2.26.so[7f0e7bae1000+1ad000]
Mar  1 11:43:10 bagend kernel: [ 1764.228997] grub-probe[5426]: segfault at 0 ip 00007fc85b67dc02 sp 00007ffd5d9dae38 error 4 in libc-2.26.so[7fc85b5e8000+1ad000]
Mar  1 11:43:10 bagend kernel: [ 1764.434329] grub-probe[5587]: segfault at 0 ip 00007f0df6066c02 sp 00007ffdffb770a8 error 4 in libc-2.26.so[7f0df5fd1000+1ad000]
Mar  1 11:43:10 bagend kernel: [ 1764.734312] SGI XFS with ACLs, security attributes, realtime, no debug enabled
Mar  1 11:43:10 bagend kernel: [ 1764.739617] JFS: nTxBlock = 8192, nTxLock = 65536
Mar  1 11:43:10 bagend kernel: [ 1764.749184] ntfs: driver 2.1.32 [Flags: R/O MODULE].
Mar  1 11:43:10 bagend kernel: [ 1764.759185] QNX4 filesystem 0.2.3 registered.
Mar  1 11:43:10 bagend kernel: [ 1764.767543] fuse init (API version 7.26)
Mar  1 11:45:31 bagend kernel: [ 1905.636128] grub-probe[7043]: segfault at 0 ip 00007f45808d0c02 sp 00007fff0cb3e0c8 error 4 in libc-2.26.so[7f458083b000+1ad000]
Mar  1 11:45:31 bagend kernel: [ 1905.816672] grub-probe[7138]: segfault at 0 ip 00007f052be44c02 sp 00007ffcf8f5ed78 error 4 in libc-2.26.so[7f052bdaf000+1ad000]
Mar  1 11:45:32 bagend kernel: [ 1906.023450] grub-probe[7299]: segfault at 0 ip 00007f0b6ccddc02 sp 00007ffed3ec3728 error 4 in libc-2.26.so[7f0b6cc48000+1ad000]

HTH
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