Messages in this thread | | | From | Christian Zigotzky <> | Date | Sat, 16 Nov 2019 08:06:05 +0100 | Subject | Bug 205201 - Booting halts if Dawicontrol DC-2976 UW SCSI board installed, unless RAM size limited to 3500M |
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FYI: Source files of the Dawicontrol DC 2976 UW SCSI board (PCI): https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/scsi/sym53c8xx_2?h=v5.4-rc7
/* * DMA addressing mode. * * 0 : 32 bit addressing for all chips. * 1 : 40 bit addressing when supported by chip. * 2 : 64 bit addressing when supported by chip, * limited to 16 segments of 4 GB -> 64 GB max. */ #define SYM_CONF_DMA_ADDRESSING_MODE CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE
Cyrus config:
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
I will configure “0 : 32 bit addressing for all chips” for the RC8. Maybe this is the solution.
> On 13. Nov 2019, at 12:02, Christoph Hellwig <hch@lst.de> wrote: > > Interesting. Give me some time to come up with a real fix, as drivers > really should not mess with GFP flags for these allocations, and even > if they did swiotlb is supposed to take care of any resulting problems.
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