> > Hi, > > I'm running a 2.4.18-14 kernel with a heavy IO profile using > ext3 over RAID 0+1 volumes. > > From time to time I get a black screen stuck machine while > trying to umount a volume during an IO workload (as part of a > failback solution - but after killing all IO processes ), > with ping still responding, but everything else mostly dead. > > I tried using the forcedumount patch to solve this problem - > to no avail. Also tried upgrading the qlogic drivers to the > latest drivers from Qlogic. > > After one of the occurences I managed to get some output > using the sysrq keys. > > This seems similar to what is described in > http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=77508 but > there is no solution yet... > > What I have here is what I managed to copy down (for some > reason pgup/pgdown didn't work so not all information is > full...) and my sorted /proc/ksyms together with a manual > lookup of the call trace: > > process umount > EIP c01190b8 (set_running_and_schedule) > call trace: > c01144c9 f25f9ec0 IO_APIC_get_PCI_irq_vector > c010a8b0 f25f9ed0 enable_irq > c014200c f25f9ef0 fsync_buffers_list > c0155595 f25f9efc clear_inode > c015553d f25f9f2c invalidate_inodes > c01461d8 f25f9f78 get_super > c014a629 f25f9f94 path_release > c0157c58 f25f9fc0 sys_umount > c0108cab sys_sigaltstack > > > attached /proc/ksyms | sort > <<ksyms>> > Any idea what can cause this ? > > > Thanks, > Yuval > > > -- > Yuval Yeret > Exanet > yuval@exanet.com > http://www.exanet.com > Tel. 972-9-9717782 > Fax. 972-9-9717778 > > > <<Yuval Yeret (E-mail).vcf>>
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BEGIN:VCARD VERSION:2.1 N:Yeret;Yuval FN:Yuval Yeret (E-mail) ORG:Exanet TITLE:Clustering and Platform Team Leader TEL;WORK;VOICE:972-9-9717782 TEL;CELL;VOICE:972-54-802458 TEL;WORK;FAX:972-9-9717778 ADR;WORK;ENCODING=QUOTED-PRINTABLE:;;9 hamanofim st=0D=0Ap.o. 4064;Herzelia;;46140;Israel LABEL;WORK;ENCODING=QUOTED-PRINTABLE:9 hamanofim st=0D=0Ap.o. 4064=0D=0AHerzelia 46140=0D=0AIsrael EMAIL;PREF;INTERNET:mailto:yuval@exanet.com REV:20020903T070728Z END:VCARD
