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Bug 1692335

Summary: kernel 5.0.3 install causes segmentation fault in dracut
Product: [Fedora] Fedora Reporter: Leszek Matok <lam>
Component: dracutAssignee: dracut-maint-list
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 29CC:, dracut-maint-list, dswaner, jonathan, jvdelisle, michal.jnn, zbyszek
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Hardware: Unspecified   
OS: Unspecified   
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Description Leszek Matok 2019-03-25 11:57:49 UTC
Description of problem:
When updating F29 to kernel 5.0.3 I got segmentation fault from dracut. This didn't happen with 4.20.6 or any older kernel.

Version-Release number of selected component (if applicable):
(only in combination with kernel-core-5.0.3-200.fc29.x86_64)

How reproducible:
Tried this once and it failed once ;)

Steps to Reproduce:
1. yum update
2. observe

Actual results:
  Wykonywanie skryptu            : kernel-core-5.0.3-200.fc29.x86_64      51/51 
/usr/lib/dracut/ line 969:  8007 Segmentation fault      (core dumped) $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${loginstall:+-L "$loginstall"} ${hostonly:+-H} ${omit_drivers:+-N "$omit_drivers"} ${srcmods:+--kerneldir "$srcmods"} ${_optional:+-o} ${_silent:+--silent} -m "$@"
dracut: FAILED:  /usr/lib/dracut/dracut-install -D /var/tmp/dracut.TsrJ1H/initramfs -H -N nvidia|nvidia_drm|nvidia-modeset|nvidia-uvm --kerneldir /lib/modules/5.0.3-200.fc29.x86_64/ -o -m =drivers/net/phy =drivers/net/team =drivers/net/ethernet ecb arc4 bridge stp llc ipv6 bonding 8021q ipvlan macvlan af_packet virtio_net xennet

dmesg shows:
[12803.646330] dracut-install[8007]: segfault at 0 ip 0000563a8b1c1444 sp 00007ffc8fa173d8 error 4 in dracut-install[563a8b1bb000+a000]
[12803.646333] Code: f2 9d 00 00 48 89 1d eb 9d 00 00 48 89 03 5b c3 66 0f 1f 44 00 00 48 89 df 5b e9 67 a2 ff ff 0f 1f 80 00 00 00 00 f3 0f 1e fa <0f> be 17 b8 05 15 00 00 84 d2 74 18 89 c1 48 83 c7 01 c1 e1 05 01

coredumpctl debug shows:
                Stack trace of thread 8007:
                #0  0x0000563a8b1c1444 n/a (dracut-install)
                #1  0x0000563a8b1c187a n/a (dracut-install)
                #2  0x0000563a8b1bd829 n/a (dracut-install)
                #3  0x0000563a8b1bf7cf n/a (dracut-install)
                #4  0x0000563a8b1bfe6b n/a (dracut-install)
                #5  0x0000563a8b1c0874 n/a (dracut-install)
                #6  0x0000563a8b1bc79d n/a (dracut-install)
                #7  0x00007f9a7a45e413 __libc_start_main (
                #8  0x0000563a8b1bca7e n/a (dracut-install)

Coredump entry has no core attached (neither internally in the journal nor externally on disk).

Expected results:
Successful post-install scriplet run?

Additional info:

Comment 1 Leszek Matok 2019-03-25 12:05:14 UTC
Actually I found which redirected to bug 1690980 which says it's a duplicate of bug 1685932 which looks like a duplicate of bug 1676357 which says this has been fixed upstream and built in rawhide over a month ago :/

Comment 2 Michal Jaegermann 2019-03-25 16:28:40 UTC
I got the same segfault on two out of three different machines with Fedora 29 when I run these updates.  Luckily enough dracut did produce initramfs-5.0.3-200.fc29.x86_64.img and boot menu entries in all cases.  Results were even bootable.

A rough comparison of produced images with corresponding ones for 4.20.16-200.fc29 shows that where segfault happend assorted firmware files
and network modules were missing.  Not necessarily the same modules in both cases with segfaults.

Comment 3 Berend De Schouwer 2019-03-26 03:56:04 UTC
I got this.  I tried re-installing the rpm, and the same segfault happens.  initramfs is created.

Different hardware means a slightly different command (no nvidia):

/usr/lib/dracut/ line 969: 32666 Segmentation fault      (core dumped) $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${loginstall:+-L "$loginstall"} ${hostonly:+-H} ${omit_drivers:+-N "$omit_drivers"} ${srcmods:+--kerneldir "$srcmods"} ${_optional:+-o} ${_silent:+--silent} -m "$@"
dracut: FAILED:  /usr/lib/dracut/dracut-install -D /var/tmp/dracut.okUqOH/initramfs -H --kerneldir /lib/modules/5.0.3-200.fc29.x86_64/ -o -m =drivers/net/phy =drivers/net/team =drivers/net/ethernet ecb arc4 bridge stp llc ipv6 bonding 8021q ipvlan macvlan af_packet virtio_net xennet