On 12/6/18 9:39 AM, Bart Van Assche wrote: > Hello, > > If I merge Jens' for-next branch with Linus' master branch and boot the > resulting kernel in a VM then the call trace shown below appears. This call > trace does not appear when building and booting the code from Linus' master > branch. Is this perhaps a regression? > > WARNING: CPU: 1 PID: 257 at block/blk-throttle.c:2128 > blk_throtl_bio+0xc00/0x1120 > Modules linked in: floppy(+) virtio_blk(+) virtio_net net_failover failover > i2c_piix4 pata_acpi > CPU: 1 PID: 257 Comm: systemd-udevd Not tainted 4.20.0-rc5-dbg+ #1 > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 > 04/01/2014 > RIP: 0010:blk_throtl_bio+0xc00/0x1120
It's some over-zealous rcu removal, simple fix is coming. CC Dennis. -- Jens Axboe
