linux-image-5.15.0-25-generic/now 5.15.0-25.25 amd64 [installed,local] <--- everything works
linux-image-5.15.0-33-generic/focal-updates,focal-security,now 5.15.0-33.34~20.04.1 amd64 [installed] <-- VM hangs
linux-image-5.15.0-41-generic/focal-updates,focal-security,now 5.15.0-41.44~20.04.1 amd64 [installed] <-- VM hangs
Here's a diff of the kernel config files
root@compute81:~# diff -Naur /boot/config-5.15.0-25-generic /boot/config-5.15.0-33-generic
--- /boot/config-5.15.0-25-generic 2022-03-30 15:28:11.000000000 +0000
+++ /boot/config-5.15.0-33-generic 2022-05-19 14:04:01.000000000 +0000
@@ -1,23 +1,22 @@
#
# Automatically generated file; DO NOT EDIT.
-# Linux/x86 5.15.0-25-generic Kernel Configuration
+# Linux/x86 5.15.0-33-generic Kernel Configuration
#
-CONFIG_CC_VERSION_TEXT="gcc (Ubuntu 11.2.0-19ubuntu1) 11.2.0"
+CONFIG_CC_VERSION_TEXT="gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0"
CONFIG_CC_IS_GCC=y
-CONFIG_GCC_VERSION=110200
+CONFIG_GCC_VERSION=90400
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
-CONFIG_AS_VERSION=23800
+CONFIG_AS_VERSION=23400
CONFIG_LD_IS_BFD=y
-CONFIG_LD_VERSION=23800
+CONFIG_LD_VERSION=23400
CONFIG_LLD_VERSION=0
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO=y
-CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
-CONFIG_PAHOLE_VERSION=122
+CONFIG_PAHOLE_VERSION=121
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y
@@ -47,7 +46,7 @@
CONFIG_KERNEL_ZSTD=y
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
-CONFIG_VERSION_SIGNATURE="Ubuntu 5.15.0-25.25-generic 5.15.30"
+CONFIG_VERSION_SIGNATURE="Ubuntu 5.15.0-33.34~20.04.1-generic 5.15.30"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
@@ -508,6 +507,7 @@
# CONFIG_LEGACY_VSYSCALL_NONE is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y
+# CONFIG_STRICT_SIGALTSTACK_SIZE is not set
CONFIG_HAVE_LIVEPATCH=y
CONFIG_LIVEPATCH=y
# end of Processor type and features
@@ -841,6 +841,7 @@
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_HAS_ELFCORE_COMPAT=y
CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y
+CONFIG_DYNAMIC_SIGFRAME=y
#
# GCOV-based kernel profiling
@@ -10282,7 +10283,25 @@
CONFIG_EROFS_FS_SECURITY=y
CONFIG_EROFS_FS_ZIP=y
CONFIG_VBOXSF_FS=m
-# CONFIG_AUFS_FS is not set
+CONFIG_AUFS_FS=m
+CONFIG_AUFS_BRANCH_MAX_127=y
+# CONFIG_AUFS_BRANCH_MAX_511 is not set
+# CONFIG_AUFS_BRANCH_MAX_1023 is not set
+# CONFIG_AUFS_BRANCH_MAX_32767 is not set
+CONFIG_AUFS_SBILIST=y
+# CONFIG_AUFS_HNOTIFY is not set
+CONFIG_AUFS_EXPORT=y
+CONFIG_AUFS_INO_T_64=y
+CONFIG_AUFS_XATTR=y
+# CONFIG_AUFS_FHSM is not set
+# CONFIG_AUFS_RDU is not set
+CONFIG_AUFS_DIRREN=y
+# CONFIG_AUFS_SHWH is not set
+# CONFIG_AUFS_BR_RAMFS is not set
+# CONFIG_AUFS_BR_FUSE is not set
+CONFIG_AUFS_BR_HFSPLUS=y
+CONFIG_AUFS_BDEV_LOOP=y
+# CONFIG_AUFS_DEBUG is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V2=m
@@ -10428,7 +10447,7 @@
CONFIG_ENCRYPTED_KEYS=y
CONFIG_KEY_DH_OPERATIONS=y
CONFIG_KEY_NOTIFICATIONS=y
-CONFIG_SECURITY_DMESG_RESTRICT=y
+# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY_PERF_EVENTS_RESTRICT=y
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
@@ -10533,8 +10552,6 @@
CONFIG_INIT_STACK_NONE=y
CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
-CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
-# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization
# end of Kernel hardening options
# end of Security options
@@ -10974,9 +10991,9 @@
# CONFIG_DEBUG_INFO_REDUCED is not set
# CONFIG_DEBUG_INFO_COMPRESSED is not set
# CONFIG_DEBUG_INFO_SPLIT is not set
-# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set
+CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
# CONFIG_DEBUG_INFO_DWARF4 is not set
-CONFIG_DEBUG_INFO_DWARF5=y
+# CONFIG_DEBUG_INFO_DWARF5 is not set
CONFIG_DEBUG_INFO_BTF=y
CONFIG_PAHOLE_HAS_SPLIT_BTF=y
CONFIG_DEBUG_INFO_BTF_MODULES=y
@@ -11030,8 +11047,6 @@
CONFIG_UBSAN_SANITIZE_ALL=y
# CONFIG_TEST_UBSAN is not set
CONFIG_HAVE_ARCH_KCSAN=y
-CONFIG_HAVE_KCSAN_COMPILER=y
-# CONFIG_KCSAN is not set
# end of Generic Kernel Debugging Instruments
List of 5.15 kernels available in the repo
root@compute81:~# apt search linux-image- 5.15.*- generic
linux-image- 5.15.0- 25-generic/ now 5.15.0-25.25 amd64 [installed,local] <--- everything works
linux-image- 5.15.0- 33-generic/ focal-updates, focal-security, now 5.15.0- 33.34~20. 04.1 amd64 [installed] <-- VM hangs
linux-image- 5.15.0- 41-generic/ focal-updates, focal-security, now 5.15.0- 41.44~20. 04.1 amd64 [installed] <-- VM hangs
Here's a diff of the kernel config files
root@compute81:~# diff -Naur /boot/config- 5.15.0- 25-generic /boot/config- 5.15.0- 33-generic 5.15.0- 25-generic 2022-03-30 15:28:11.000000000 +0000 5.15.0- 33-generic 2022-05-19 14:04:01.000000000 +0000 CC_VERSION_ TEXT="gcc (Ubuntu 11.2.0-19ubuntu1) 11.2.0" CC_VERSION_ TEXT="gcc (Ubuntu 9.4.0-1ubuntu1~ 20.04.1) 9.4.0" GCC_VERSION= 110200 GCC_VERSION= 90400 CLANG_VERSION= 0 AS_VERSION= 23800 AS_VERSION= 23400 LD_VERSION= 23800 LD_VERSION= 23400 LLD_VERSION= 0 CC_CAN_ LINK=y CC_CAN_ LINK_STATIC= y CC_HAS_ ASM_GOTO= y CC_HAS_ ASM_GOTO_ OUTPUT= y CC_HAS_ ASM_INLINE= y CC_HAS_ NO_PROFILE_ FN_ATTR= y PAHOLE_ VERSION= 122 PAHOLE_ VERSION= 121 BUILDTIME_ TABLE_SORT= y THREAD_ INFO_IN_ TASK=y KERNEL_ ZSTD=y DEFAULT_ INIT="" DEFAULT_ HOSTNAME= "(none) " VERSION_ SIGNATURE= "Ubuntu 5.15.0- 25.25-generic 5.15.30" VERSION_ SIGNATURE= "Ubuntu 5.15.0- 33.34~20. 04.1-generic 5.15.30" SYSVIPC_ SYSCTL= y LEGACY_ VSYSCALL_ NONE is not set MODIFY_ LDT_SYSCALL= y STRICT_ SIGALTSTACK_ SIZE is not set HAVE_LIVEPATCH= y ARCH_SUPPORTS_ DEBUG_PAGEALLOC =y ARCH_HAS_ ELFCORE_ COMPAT= y ARCH_HAS_ PARANOID_ L1D_FLUSH= y DYNAMIC_ SIGFRAME= y
--- /boot/config-
+++ /boot/config-
@@ -1,23 +1,22 @@
#
# Automatically generated file; DO NOT EDIT.
-# Linux/x86 5.15.0-25-generic Kernel Configuration
+# Linux/x86 5.15.0-33-generic Kernel Configuration
#
-CONFIG_
+CONFIG_
CONFIG_CC_IS_GCC=y
-CONFIG_
+CONFIG_
CONFIG_
CONFIG_AS_IS_GNU=y
-CONFIG_
+CONFIG_
CONFIG_LD_IS_BFD=y
-CONFIG_
+CONFIG_
CONFIG_
CONFIG_
CONFIG_
CONFIG_
-CONFIG_
CONFIG_
CONFIG_
-CONFIG_
+CONFIG_
CONFIG_IRQ_WORK=y
CONFIG_
CONFIG_
@@ -47,7 +46,7 @@
CONFIG_
CONFIG_
CONFIG_
-CONFIG_
+CONFIG_
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_
@@ -508,6 +507,7 @@
# CONFIG_
# CONFIG_CMDLINE_BOOL is not set
CONFIG_
+# CONFIG_
CONFIG_
CONFIG_LIVEPATCH=y
# end of Processor type and features
@@ -841,6 +841,7 @@
CONFIG_
CONFIG_
CONFIG_
+CONFIG_
# EROFS_FS_ SECURITY= y EROFS_FS_ ZIP=y AUFS_BRANCH_ MAX_127= y AUFS_BRANCH_ MAX_511 is not set AUFS_BRANCH_ MAX_1023 is not set AUFS_BRANCH_ MAX_32767 is not set AUFS_SBILIST= y AUFS_EXPORT= y AUFS_INO_ T_64=y AUFS_XATTR= y AUFS_DIRREN= y AUFS_BR_ RAMFS is not set AUFS_BR_ HFSPLUS= y AUFS_BDEV_ LOOP=y NETWORK_ FILESYSTEMS= y ENCRYPTED_ KEYS=y KEY_DH_ OPERATIONS= y KEY_NOTIFICATIO NS=y SECURITY_ DMESG_RESTRICT= y SECURITY_ DMESG_RESTRICT is not set SECURITY_ PERF_EVENTS_ RESTRICT= y SECURITYFS= y INIT_STACK_ NONE=y INIT_ON_ ALLOC_DEFAULT_ ON=y INIT_ON_ FREE_DEFAULT_ ON is not set CC_HAS_ ZERO_CALL_ USED_REGS= y ZERO_CALL_ USED_REGS is not set DEBUG_INFO_ REDUCED is not set DEBUG_INFO_ COMPRESSED is not set DEBUG_INFO_ SPLIT is not set DEBUG_INFO_ DWARF_TOOLCHAIN _DEFAULT is not set DEBUG_INFO_ DWARF_TOOLCHAIN _DEFAULT= y DEBUG_INFO_ DWARF4 is not set DEBUG_INFO_ DWARF5= y DEBUG_INFO_ DWARF5 is not set DEBUG_INFO_ BTF=y PAHOLE_ HAS_SPLIT_ BTF=y DEBUG_INFO_ BTF_MODULES= y UBSAN_SANITIZE_ ALL=y HAVE_ARCH_ KCSAN=y HAVE_KCSAN_ COMPILER= y
# GCOV-based kernel profiling
@@ -10282,7 +10283,25 @@
CONFIG_
CONFIG_
CONFIG_VBOXSF_FS=m
-# CONFIG_AUFS_FS is not set
+CONFIG_AUFS_FS=m
+CONFIG_
+# CONFIG_
+# CONFIG_
+# CONFIG_
+CONFIG_
+# CONFIG_AUFS_HNOTIFY is not set
+CONFIG_
+CONFIG_
+CONFIG_
+# CONFIG_AUFS_FHSM is not set
+# CONFIG_AUFS_RDU is not set
+CONFIG_
+# CONFIG_AUFS_SHWH is not set
+# CONFIG_
+# CONFIG_AUFS_BR_FUSE is not set
+CONFIG_
+CONFIG_
+# CONFIG_AUFS_DEBUG is not set
CONFIG_
CONFIG_NFS_FS=m
CONFIG_NFS_V2=m
@@ -10428,7 +10447,7 @@
CONFIG_
CONFIG_
CONFIG_
-CONFIG_
+# CONFIG_
CONFIG_
CONFIG_SECURITY=y
CONFIG_
@@ -10533,8 +10552,6 @@
CONFIG_
CONFIG_
# CONFIG_
-CONFIG_
-# CONFIG_
# end of Memory initialization
# end of Kernel hardening options
# end of Security options
@@ -10974,9 +10991,9 @@
# CONFIG_
# CONFIG_
# CONFIG_
-# CONFIG_
+CONFIG_
# CONFIG_
-CONFIG_
+# CONFIG_
CONFIG_
CONFIG_
CONFIG_
@@ -11030,8 +11047,6 @@
CONFIG_
# CONFIG_TEST_UBSAN is not set
CONFIG_
-CONFIG_
-# CONFIG_KCSAN is not set
# end of Generic Kernel Debugging Instruments
CONFIG_ DEBUG_KERNEL= y
root@compute81:~#