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Ticket Resolution Summary Owner Reporter
#18475 fixed virtualbox dkms vboxdrv kernel modules fails to build on Linux Kernel 5.0 -> fixed in 5.2.26/6.0.4 Danny Kulchinsky
Description

OS: Linux Mint 19.1 running Kernel 5.0-rc7

When installing virtualbox-dkms package, the vboxdrv fails to build with the following errors:

/var/lib/dkms/virtualbox/5.2.18/build/vboxdrv/r0drv/linux/memuserkernel-r0drv-linux.c: In function ‘VBoxHost_RTR0MemUserIsValidAddr’:
/var/lib/dkms/virtualbox/5.2.18/build/vboxdrv/r0drv/linux/memuserkernel-r0drv-linux.c:69:55: error: macro "access_ok" passed 3 arguments, bu
t takes just 2
     bool fRc = access_ok(VERIFY_READ, (void *)R3Ptr, 1);
                                                       ^
/var/lib/dkms/virtualbox/5.2.18/build/vboxdrv/r0drv/linux/memuserkernel-r0drv-linux.c:69:16: error: ‘access_ok’ undeclared (first use in thi
s function)
     bool fRc = access_ok(VERIFY_READ, (void *)R3Ptr, 1);
                ^~~~~~~~~
/var/lib/dkms/virtualbox/5.2.18/build/vboxdrv/r0drv/linux/memuserkernel-r0drv-linux.c:69:16: note: each undeclared identifier is reported on
ly once for each function it appears in
scripts/Makefile.build:276: recipe for target '/var/lib/dkms/virtualbox/5.2.18/build/vboxdrv/r0drv/linux/memuserkernel-r0drv-linux.o' failed
make[2]: *** [/var/lib/dkms/virtualbox/5.2.18/build/vboxdrv/r0drv/linux/memuserkernel-r0drv-linux.o] Error 1
make[2]: *** Waiting for unfinished jobs....
scripts/Makefile.build:492: recipe for target '/var/lib/dkms/virtualbox/5.2.18/build/vboxdrv' failed
make[1]: *** [/var/lib/dkms/virtualbox/5.2.18/build/vboxdrv] Error 2

This is because the 5.0 kernel dropped the type argument to access_ok()

https://lkml.org/lkml/2019/1/4/418

A similar issue in zfs (for example): https://github.com/zfsonlinux/zfs/issues/8261

#18474 duplicate Change time stamp of Vbox.log to absolute date and time 数组越界
Description

I have read https://www.virtualbox.org/ticket/15949, however it is still better to log absolute date and time in release logs since it is quite difficult to calculate time based on relative time.

#18470 duplicate Ubuntu image fails to load - 'HGCM' (VERR_TOO_MUCH_DATA). PeteB
Description

Can anyone provide any information on the following problem and how to correct it? A previously working Ubuntu image now fails to load:

Failed to open a session for the virtual machine ubuntu.

Failed to load unit 'HGCM' (VERR_TOO_MUCH_DATA).

Result Code: E_FAIL (0x80004005) Component: ConsoleWrap Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

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