Messages in this thread | | | Date | Sun, 19 Jun 2022 20:49:49 +0200 | From | Marek Behún <> | Subject | Boot stall regression from "printk for 5.19" merge |
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Hello Linus, Petr, John,
the series https://lore.kernel.org/linux-kernel/YouKQw72H7y9EJQK@alley/ merged by commit 537e62c865dc ("Merge tag 'printk-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux")
and in particular the commit 09c5ba0aa2fc ("printk: add kthread console printers")
causes a regression on arm64 (Marvell CN9130-CRB board) where the system boot freezes in most cases (and is unusable until restarted by watchdog), or, in some cases boots, but the console output gets mangled for a while (the serial console spits garbage characters).
The stall example:
... [ 1.108141] io scheduler mq-deadline registered [ 1.108143] io scheduler kyber registered [ 1.163484] armada-ap806-pinctrl f06f4000.system-controller:pinctrl: registered pinctrl driver [
Or another:
... [ 1.108155] io scheduler mq-deadline registered [ 1.108156] io scheduler kyber registered [ 1.162991] armada-ap806-pinctrl f06f4000.system-controller:pinctrl: registered pinctrl driver [ 1.163361] armada-cp110-pinctrl f2440000.system-controller:pinctrl: registered pinctrl driver [ 1.180827] mv_xor_v2 f0400000.xor: Marvell Version 2 XOR driver [
The garbage example:
... [ 0.920951] raid6: using neon recovery algorithm [ 0.921228] iommu: Default domain type: Translated %
gb@k+cFL/[ 4.954974] DSA: tree 0 setup [ 4.955286] cfg80211: Loading compiled-in X.509 certificates for regulatory database
I did not have time to look at the contents of the commit yet to try to fix it myself, and won't have time for another two weeks. But I thought I should let you know now.
Marek
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