Date: Sun, 22 Jan 2006 09:51:18 -0700 From: Scott Long <scottl@samsco.org> To: Attila Nagy <bra@fsn.hu> Cc: freebsd-current@freebsd.org Subject: Re: SCSI target mode LOR Message-ID: <43D3B806.4020006@samsco.org> In-Reply-To: <43D3AA14.9090800@fsn.hu> References: <43D3AA14.9090800@fsn.hu>
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Attila Nagy wrote: > Hello, > > I'm doing some experiments with FreeBSD target mode support on Fibre > Channel and thought that I should give CURRENT a try too. > > The machine itself is an HP BL25p with 8 GB of RAM (but hw.physmem set > to under 4G, it seems the isp driver needs this) and dual Opterons. > Running amd64 code. > > This is what I get after issuing > scsi_target -A -S -T -W 32 2:0:0 /data/file1 > > lock order reversal: (sleepable after non-sleepable) > 1st 0xffffffff808ce680 targ global (targ global) @ > /usr/src/sys/cam/scsi/scsi_target.c:418 > 2nd 0xffffffff808e98c0 kernel environment (kernel environment) @ > /usr/src/sys/kern/subr_hints.c:117 > KDB: stack backtrace: > witness_checkorder() at witness_checkorder+0x4f9 > _sx_slock() at _sx_slock+0x4d > res_find() at res_find+0x41a > resource_find() at resource_find+0x7e > resource_find_dev() at resource_find_dev+0x5f > cam_periph_alloc() at cam_periph_alloc+0x1df > targioctl() at targioctl+0x3a7 > giant_ioctl() at giant_ioctl+0x65 > devfs_ioctl_f() at devfs_ioctl_f+0x6f > ioctl() at ioctl+0x147 > syscall() at syscall+0x517 > Xfast_syscall() at Xfast_syscall+0xa8 > --- syscall (54, FreeBSD ELF64, ioctl), rip = 0x800909aac, rsp = > 0x7fffffffbb98, rbp = 0x7fffffffe700 --- > > Thanks, > Hi, Please file a PR on this and assign it to me. I'll be working in this area soon. Scott
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