Date: Mon, 3 Jun 2002 05:10:45 +0300 From: Aggelos Economopoulos <aoiko@cc.ece.ntua.gr> To: freebsd-questions@FreeBSD.ORG Subject: Disk access Message-ID: <200206030510.45507.aoiko@cc.ece.ntua.gr>
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After adding a 40G ide disk(ad3) on my system, I 'ld like to devote some extra space to FreeBSD (there is already a linux installation on the 40G disk). However, after booting my -stable installation on the first disk(ad0), I get the error message "excessive recursion in search for slices" by the kernel on any attempt to access ad3 (mount a partition, fdisk -s /dev/ad3, or even a read() on ad3). Initially, I thought I had hit a bug in sys/kern/subr_diskmbr.c. Only, using a userspace partition viewer (which understands the partition setup on ad3 when run under linux) I get simillar errors (ie infinite loop in the partition handling code), which seem to stem from a read() returning sector 0 (the mbr of ad3) at somepoint in following the extended partition tables chain (do *not* consider this a fact, I could be wrong). I therefore conclude that this is not a problem in the partition handling code and given my lack of familiarity with the kernel I cannot even guess at the cause. For what it's worth, ->d_secperunit in the in kernel disklabel is the same as the number of sectors reported by the linux kernel. I can only assume that this is some obvious misconfiguration on my part. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the messagehelp
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